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Third Grade Math

Multiplication, fractions, and area. Strengthen third-grade math with clear concepts and interactive tools. Bright visuals, short wins, and simple next steps are front and center here.

MathSkillsCurriculum
Adventure map
Start with one short lesson and build confidence.
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Learning Adventures

📚

Week 1: Place value and rounding

6 lessons•~30 mins

Skills and concepts for Place value and rounding.

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✨

Week 2: Addition and subtraction

6 lessons•~30 mins

Skills and concepts for Addition and subtraction.

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🚀

Week 3: Addition and subtraction

5 lessons•~25 mins

Skills and concepts for Addition and subtraction.

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🎯

Week 4: Addition and subtraction

6 lessons•~30 mins

Skills and concepts for Addition and subtraction.

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🧩

Week 5: Understand multiplication

6 lessons•~30 mins

Skills and concepts for Understand multiplication.

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🧪

Week 6: Understand multiplication

5 lessons•~25 mins

Skills and concepts for Understand multiplication.

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✨

Week 12: Understand division

6 lessons•~30 mins

Skills and concepts for Understand division.

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🚀

Week 13: Understand division

5 lessons•~25 mins

Skills and concepts for Understand division.

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🔍

Week 17: Multiplication and division

6 lessons•~30 mins

Skills and concepts for Multiplication and division.

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✨

Week 22: Understand fractions

8 lessons•~40 mins

Skills and concepts for Understand fractions.

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🚀

Week 23: Fraction word problems

6 lessons•~30 mins

Skills and concepts for Fraction word problems.

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🎯

Week 24: Fractions on number lines

6 lessons•~30 mins

Skills and concepts for Fractions on number lines.

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🧩

Week 25: Equivalent fractions

6 lessons•~30 mins

Skills and concepts for Equivalent fractions.

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🧪

Week 26: Equivalent fractions

7 lessons•~35 mins

Skills and concepts for Equivalent fractions.

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🔍

Week 27: Compare fractions

6 lessons•~30 mins

Skills and concepts for Compare fractions.

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💡

Week 28: Compare and order fractions

6 lessons•~30 mins

Skills and concepts for Compare and order fractions.

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⭐

Week 30: Graphs and quadrilaterals

7 lessons•~35 mins

Skills and concepts for Graphs and quadrilaterals.

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All Lessons (220)

1
Place value names up to ten thousands
Big numbers are easier when you read them by place. In third grade, you can now read numbers all the way to ten-thousands.
2
Value of a digit up to ten thousands
A digit has a face value and a place value. The place decides how much the digit is really worth.
3
Convert between standard and expanded form
Expanded form shows how a number is built from place values. Standard form puts it back together.
4
Round to the nearest ten or hundred using a number line
A number line helps you see which friendly number is closer. Rounding becomes visual and quick.
5
Round to the nearest ten or hundred
Let's make numbers simpler! 🎯 Rounding helps us estimate by finding the closest 'friendly' number (like a ten or a hundred). It's like finding the nearest landmark on a map! 🗺️
6
Round to the nearest ten or hundred in a table
📊 Let's use our rounding skills to fill out data tables. This makes organizing big numbers super easy to read!
7
Use number lines to add three-digit numbers
🐸 Time for some huge leaps! Adding three-digit numbers is easy when you see them on an open number line.
8
Use number lines to subtract three-digit numbers
🚀 3-2-1... blast off backward! We can use an open number line to count back by hundreds and tens to solve huge subtraction problems.
9
Use compensation to add: up to three digits
⚖️ Want to do mental math like a wizard? Use "compensation" to turn ugly numbers into friendly ones before you add!
10
Use compensation to subtract: up to three digits
🛝 Subtraction compensation is a magic trick! If you slide BOTH numbers by the same amount, the difference stays the exact same.
11
Complete the addition or subtraction sentence
Master the concepts of Complete the addition or subtraction sentence.
12
Relate addition and subtraction sentences
Master the concepts of Relate addition and subtraction sentences.
13
Add using properties
Master the concepts of Add using properties.
14
Add three numbers up to three digits each
Master the concepts of Add three numbers up to three digits each.
15
Estimate sums and differences by rounding: up to 1,000
Master the concepts of Estimate sums and differences by rounding: up to 1,000.
16
Estimate sums and differences: word problems
Master the concepts of Estimate sums and differences: word problems.
17
Estimate sums and differences using compatible numbers
Master the concepts of Estimate sums and differences using compatible numbers.
18
Add two numbers up to three digits
Master the concepts of Add two numbers up to three digits.
19
Add two numbers up to three digits: word problems
Master the concepts of Add two numbers up to three digits: word problems.
20
Subtract numbers up to three digits
Master the concepts of Subtract numbers up to three digits.
21
Subtract numbers up to three digits: word problems
Master the concepts of Subtract numbers up to three digits: word problems.
22
Add and subtract three-digit numbers
Master the concepts of Add and subtract three-digit numbers.
23
Two-step addition and subtraction word problems
Two-step problems are mini-missions. Solve one part, then use that answer in the next step.
24
Identify repeated addition for equal groups - sums to 25
Master the concepts of Identify repeated addition for equal groups - sums to 25.
25
Write addition sentences for equal groups - sums to 25
Master the concepts of Write addition sentences for equal groups - sums to 25.
26
Relate addition and multiplication for equal groups
Multiplication is just super-fast adding! 🚀 Instead of adding the same number over and over, you can use multiplication to get the answer in a flash. It’s a powerful shortcut! ⚡
27
Write multiplication sentences for equal groups
Master the concepts of Write multiplication sentences for equal groups.
28
Multiply by 0 or 1 with equal groups
Master the concepts of Multiply by 0 or 1 with equal groups.
29
Multiply by 0 or 1: complete the sentence
Master the concepts of Multiply by 0 or 1: complete the sentence.
30
Make arrays to model multiplication
Multiply rows and columns! 🌟 A fun way to see multiplication is to build a grid of items called an array.
31
Write two multiplication sentences for an array
Master the concepts of Write two multiplication sentences for an array.
32
Use strip models to solve multiplication word problems
Strip models turn word problems into pictures, so multiplication is easier to see.
33
Multiply using number lines
Master the concepts of Multiply using number lines.
34
Write multiplication sentences for number lines
Master the concepts of Write multiplication sentences for number lines.
35
Skip-count
Master the concepts of Skip-count.
36
Skip-counting sequences
Master the concepts of Skip-counting sequences.
37
Multiply 2 by numbers up to 10
Master the concepts of Multiply 2 by numbers up to 10.
38
Multiply 5 by numbers up to 10
Master the concepts of Multiply 5 by numbers up to 10.
39
Multiply 10 by numbers up to 10
Master the concepts of Multiply 10 by numbers up to 10.
40
Multiply 3 by numbers up to 10
Master the concepts of Multiply 3 by numbers up to 10.
41
Multiply 4 by numbers up to 10
Master the concepts of Multiply 4 by numbers up to 10.
42
Multiplication facts for 2, 3, 4, 5, and 10
Let's master our first times tables! 🧠 Knowing these facts by heart will make you a multiplication superstar. We'll learn some cool patterns to help you remember them forever! ✨
43
Multiply 6 by numbers up to 10
Master the concepts of Multiply 6 by numbers up to 10.
44
Multiply 7 by numbers up to 10
Master the concepts of Multiply 7 by numbers up to 10.
45
Multiply 8 by numbers up to 10
Master the concepts of Multiply 8 by numbers up to 10.
46
Multiply 9 by numbers up to 10
Master the concepts of Multiply 9 by numbers up to 10.
47
Multiplication facts for 6, 7, 8, and 9
Master the concepts of Multiplication facts for 6, 7, 8, and 9.
48
Multiply one-digit numbers using grids
Master the concepts of Multiply one-digit numbers using grids.
49
Multiply using the distributive property
Break tough facts into friendly facts. The distributive property is a math shortcut superpower.
50
Number Pattern Explorer
Master the concepts of Number Pattern Explorer.
51
Multiplication facts up to 10
Master the concepts of Multiplication facts up to 10.
52
Multiplication facts up to 10: sorting
Master the concepts of Multiplication facts up to 10: sorting.
53
Multiplication word problems with factors up to 10
Master the concepts of Multiplication word problems with factors up to 10.
54
Multiplication facts up to 10: find the missing factor
Master the concepts of Multiplication facts up to 10: find the missing factor.
55
Multiplication word problems with factors up to 10: find the missing number
Master the concepts of Multiplication word problems with factors up to 10: find the missing number.
56
Multiply three numbers
Master the concepts of Multiply three numbers.
57
Multiply three numbers: word problems
Master the concepts of Multiply three numbers: word problems.
58
Find the area of figures made of unit squares
Master the concepts of Find the area of figures made of unit squares.
59
Select figures with a given area
Master the concepts of Select figures with a given area.
60
Create figures with a given area
Master the concepts of Create figures with a given area.
61
Tile a rectangle and find the area
Master the concepts of Tile a rectangle and find the area.
62
Select two figures with the same area
Master the concepts of Select two figures with the same area.
63
Multiply to find the area of a rectangle made of unit squares
No more counting one by one! 📦 Let's use the power of multiplication to find the area of rectangles super fast. It's all about rows and columns!
64
Find the area of rectangles and squares
Master the concepts of Find the area of rectangles and squares.
65
Find the area of rectangles: word problems
Master the concepts of Find the area of rectangles: word problems.
66
Create rectangles with a given area
Master the concepts of Create rectangles with a given area.
67
Find the area of complex figures by dividing them into rectangles
Master the concepts of Find the area of complex figures by dividing them into rectangles.
68
Find the area of complex figures
Master the concepts of Find the area of complex figures.
69
Find the area of complex figures: word problems
Master the concepts of Find the area of complex figures: word problems.
70
Find the missing side length of a rectangle
Master the concepts of Find the missing side length of a rectangle.
71
Find the area between two rectangles
Master the concepts of Find the area between two rectangles.
72
Divide by counting equal groups
Master the concepts of Divide by counting equal groups.
73
Write division sentences for groups
Master the concepts of Write division sentences for groups.
74
Use equal groups to solve division word problems
Master the concepts of Use equal groups to solve division word problems.
75
Relate multiplication and division for groups
Multiplication and division are best friends! 🤝 They are opposites, and they work together in families called "fact families". If you know one fact, you actually know four!
76
Division sentences with 1 and 0
Master the concepts of Division sentences with 1 and 0.
77
Use strip models to solve division word problems
Master the concepts of Use strip models to solve division word problems.
78
Write division sentences for arrays
Master the concepts of Write division sentences for arrays.
79
Make arrays to model division
Master the concepts of Make arrays to model division.
80
Use arrays to solve division word problems
Master the concepts of Use arrays to solve division word problems.
81
Relate multiplication and division for arrays
Master the concepts of Relate multiplication and division for arrays.
82
Divide using number lines
Master the concepts of Divide using number lines.
83
Relate multiplication and division
Master the concepts of Relate multiplication and division.
84
Divide by 2: quotients up to 10
Master the concepts of Divide by 2: quotients up to 10.
85
Divide by 5: quotients up to 10
Master the concepts of Divide by 5: quotients up to 10.
86
Divide by 10: quotients up to 10
Master the concepts of Divide by 10: quotients up to 10.
87
Divide by 3: quotients up to 10
Master the concepts of Divide by 3: quotients up to 10.
88
Divide by 4: quotients up to 10
Master the concepts of Divide by 4: quotients up to 10.
89
Division facts for 2, 3, 4, 5, and 10
Master the concepts of Division facts for 2, 3, 4, 5, and 10.
90
Division facts for 2, 3, 4, 5, and 10: sorting
Master the concepts of Division facts for 2, 3, 4, 5, and 10: sorting.
91
Divide by 6: quotients up to 10
Master the concepts of Divide by 6: quotients up to 10.
92
Divide by 7: quotients up to 10
Master the concepts of Divide by 7: quotients up to 10.
93
Divide by 8: quotients up to 10
Master the concepts of Divide by 8: quotients up to 10.
94
Divide by 9: quotients up to 10
Master the concepts of Divide by 9: quotients up to 10.
95
Division facts for 6, 7, 8, and 9
Master the concepts of Division facts for 6, 7, 8, and 9.
96
Division facts for 6, 7, 8, and 9: sorting
Master the concepts of Division facts for 6, 7, 8, and 9: sorting.
97
Division facts up to 10
Master the concepts of Division facts up to 10.
98
Division facts up to 10: sorting
Master the concepts of Division facts up to 10: sorting.
99
Division word problems
Division helps share and group fairly. Ask: are we finding number of groups or size of each group?
100
Division facts up to 10: find the missing number
Master the concepts of Division facts up to 10: find the missing number.
101
Multiplication and division: real-world patterns
Master the concepts of Multiplication and division: real-world patterns.
102
Multiplication and division facts up to 10
Master the concepts of Multiplication and division facts up to 10.
103
Identify multiplication patterns in tables
Master the concepts of Identify multiplication patterns in tables.
104
Even or odd: multiplication patterns
Master the concepts of Even or odd: multiplication patterns.
105
Multiply by a multiple of ten using place value
Master the concepts of Multiply by a multiple of ten using place value.
106
Multiply by a multiple of ten
Master the concepts of Multiply by a multiple of ten.
107
Write equations with unknown numbers to represent word problems: multiplication and division only
Master the concepts of Write equations with unknown numbers to represent word problems: multiplication and division only.
108
Write equations with unknown numbers to represent word problems
Master the concepts of Write equations with unknown numbers to represent word problems.
109
Two-step multiplication and division word problems
Master the concepts of Two-step multiplication and division word problems.
110
Add, subtract, multiply, and divide
Master the concepts of Add, subtract, multiply, and divide.
111
Two-step mixed operation word problems
Master the concepts of Two-step mixed operation word problems.
112
Two-step word problems: identify reasonable answers
Master the concepts of Two-step word problems: identify reasonable answers.
113
Perimeter of rectangles
Master the concepts of Perimeter of rectangles.
114
Perimeter of quadrilaterals
Master the concepts of Perimeter of quadrilaterals.
115
Perimeter of rectilinear shapes
Master the concepts of Perimeter of rectilinear shapes.
116
Perimeter of polygons
Master the concepts of Perimeter of polygons.
117
Perimeter: find the missing side length
Master the concepts of Perimeter: find the missing side length.
118
Perimeter: word problems
Perimeter means distance around a shape. It helps with fences, borders, and paths.
119
Match analog and digital clocks
Master the concepts of Match analog and digital clocks.
120
Read clocks and write times
Master the concepts of Read clocks and write times.
121
A.M. or P.M.
Master the concepts of A.M. or P.M..
122
Find the end time
Master the concepts of Find the end time.
123
Find the end time: word problems
Master the concepts of Find the end time: word problems.
124
Find the elapsed time
Master the concepts of Find the elapsed time.
125
Find the elapsed time: word problems
Elapsed time means how long something takes from start to finish.
126
Find start and end times: two-step word problems
Master the concepts of Find start and end times: two-step word problems.
127
Which customary unit of volume is appropriate?
Master the concepts of Which customary unit of volume is appropriate?.
128
Which metric unit of volume is appropriate?
Master the concepts of Which metric unit of volume is appropriate?.
129
Which customary unit of weight is appropriate?
Master the concepts of Which customary unit of weight is appropriate?.
130
Which metric unit of mass is appropriate?
Master the concepts of Which metric unit of mass is appropriate?.
131
Measure using an inch ruler: nearest ¼ inch
Master the concepts of Measure using an inch ruler: nearest ¼ inch.
132
Measurement word problems
Measurement problems ask you to choose the right unit and compute with real-life quantities.
133
Make halves, thirds, fourths, sixths, and eighths
Master the concepts of Make halves, thirds, fourths, sixths, and eighths.
134
Understand fractions: fraction bars
Master the concepts of Understand fractions: fraction bars.
135
Understand fractions: area models
Let's slice up some shapes! 🍕 Fractions are all about equal parts of a whole. We'll use shapes like circles and rectangles to see what fractions look like.
136
Show fractions: fraction bars
Master the concepts of Show fractions: fraction bars.
137
Show fractions: area models
Master the concepts of Show fractions: area models.
138
Match fractions to models
Master the concepts of Match fractions to models.
139
Match mixed numbers to models
Master the concepts of Match mixed numbers to models.
140
Write fractions using numbers and words
Master the concepts of Write fractions using numbers and words.
141
Unit fractions: modeling word problems
Master the concepts of Unit fractions: modeling word problems.
142
Unit fractions: word problems
Master the concepts of Unit fractions: word problems.
143
Fractions of a whole: modeling word problems
Master the concepts of Fractions of a whole: modeling word problems.
144
Fractions of a whole: word problems
Master the concepts of Fractions of a whole: word problems.
145
Fractions of a group
Master the concepts of Fractions of a group.
146
Fractions of a group: word problems
Master the concepts of Fractions of a group: word problems.
147
Fractions of number lines: unit fractions
Master the concepts of Fractions of number lines: unit fractions.
148
Fractions of number lines
Master the concepts of Fractions of number lines.
149
Identify unit fractions on number lines
Master the concepts of Identify unit fractions on number lines.
150
Identify fractions on number lines
Master the concepts of Identify fractions on number lines.
151
Graph fractions on number lines
Master the concepts of Graph fractions on number lines.
152
Graph smaller or larger fractions on a number line
Master the concepts of Graph smaller or larger fractions on a number line.
153
Find equivalent fractions using fraction strips
Build equivalent fractions! 🧱 Use the fraction wall to visually piece together smaller blocks that perfectly match the size of a bigger block.
154
Find equivalent fractions using area models: two models
Some fractions look different but are actually the same size! 🤔 These are called equivalent fractions. We can use two identical shapes to see how this works.
155
Find equivalent fractions using area models: one model
Master the concepts of Find equivalent fractions using area models: one model.
156
Identify equivalent fractions on number lines
Master the concepts of Identify equivalent fractions on number lines.
157
Find equivalent fractions using number lines
Master the concepts of Find equivalent fractions using number lines.
158
Graph equivalent fractions on number lines
Master the concepts of Graph equivalent fractions on number lines.
159
Identify equivalent fractions
Master the concepts of Identify equivalent fractions.
160
Find equivalent fractions
Master the concepts of Find equivalent fractions.
161
Write fractions in lowest terms
Master the concepts of Write fractions in lowest terms.
162
Graph fractions equivalent to 1 on number lines
Master the concepts of Graph fractions equivalent to 1 on number lines.
163
Select fractions equivalent to whole numbers using models
Master the concepts of Select fractions equivalent to whole numbers using models.
164
Select fractions equivalent to whole numbers
Master the concepts of Select fractions equivalent to whole numbers.
165
Find fractions equivalent to whole numbers
Master the concepts of Find fractions equivalent to whole numbers.
166
Compare fractions with like denominators using models
Master the concepts of Compare fractions with like denominators using models.
167
Graph and compare fractions with like denominators on number lines
Master the concepts of Graph and compare fractions with like denominators on number lines.
168
Compare fractions with like numerators using models
Master the concepts of Compare fractions with like numerators using models.
169
Graph and compare fractions with like numerators on number lines
Master the concepts of Graph and compare fractions with like numerators on number lines.
170
Compare fractions with like numerators
Master the concepts of Compare fractions with like numerators.
171
Compare fractions with like denominators
Master the concepts of Compare fractions with like denominators.
172
Compare fractions using models
Master the concepts of Compare fractions using models.
173
Graph and compare fractions on number lines
Master the concepts of Graph and compare fractions on number lines.
174
Compare fractions and justify your answer
Master the concepts of Compare fractions and justify your answer.
175
Compare fractions
Fractions can be compared with models, number lines, and smart benchmark thinking.
176
Graph and order fractions on number lines
Master the concepts of Graph and order fractions on number lines.
177
Order fractions
Master the concepts of Order fractions.
178
Create scaled picture graphs
Master the concepts of Create scaled picture graphs.
179
Interpret scaled picture graphs
Master the concepts of Interpret scaled picture graphs.
180
Create scaled bar graphs
Master the concepts of Create scaled bar graphs.
181
Interpret scaled bar graphs
These bar graphs are leveled up! 🚀 In a scaled bar graph, the numbers might count by 2s, 5s, 10s, or even more. We have to be super detectives to read the scale correctly!
182
Use bar graphs to solve problems
Master the concepts of Use bar graphs to solve problems.
183
Create line plots with fractions
Master the concepts of Create line plots with fractions.
184
Create and interpret line plots with fractions
Line plots help organize measurement data. Fractions make them even more interesting.
185
Is it a polygon?
Master the concepts of Is it a polygon?.
186
Attributes of polygons
Master the concepts of Attributes of polygons.
187
Attributes of quadrilaterals
Master the concepts of Attributes of quadrilaterals.
188
Parallel sides in quadrilaterals
Master the concepts of Parallel sides in quadrilaterals.
189
Identify parallelograms
Master the concepts of Identify parallelograms.
190
Identify rectangles
Master the concepts of Identify rectangles.
191
Identify rhombuses
Master the concepts of Identify rhombuses.
192
Classify squares, rectangles, rhombuses, and parallelograms
It's a shape party! 🎉 These four-sided shapes are all related, like a family. Let's learn their family secrets and how to tell them apart!
193
Name quadrilaterals more than one way
Master the concepts of Name quadrilaterals more than one way.
194
Draw squares, rectangles, rhombuses, and parallelograms
Master the concepts of Draw squares, rectangles, rhombuses, and parallelograms.
195
Identify trapezoids
Master the concepts of Identify trapezoids.
196
Count coins and bills - up to $5 bill
Master the concepts of Count coins and bills - up to $5 bill.
197
Count coins and bills word problems - up to $5 bill
Master the concepts of Count coins and bills word problems - up to $5 bill.
198
Purchases - do you have enough money - up to $10
Master the concepts of Purchases - do you have enough money - up to $10.
199
Which picture shows more?
Master the concepts of Which picture shows more?.
200
Put money amounts in order
Master the concepts of Put money amounts in order.
201
Correct amount of change
Master the concepts of Correct amount of change.
202
Making change
Making change is subtraction with money. Count up from the cost to the amount paid.
203
PPre-K
Master the concepts of PPre-K.
204
KKindergarten
Master the concepts of KKindergarten.
205
1First grade
Master the concepts of 1First grade.
206
2Second grade
Master the concepts of 2Second grade.
207
3Third grade
Master the concepts of 3Third grade.
208
4Fourth grade
Master the concepts of 4Fourth grade.
209
5Fifth grade
Master the concepts of 5Fifth grade.
210
6Sixth grade
Master the concepts of 6Sixth grade.
211
7Seventh grade
Master the concepts of 7Seventh grade.
212
8Eighth grade
Master the concepts of 8Eighth grade.
213
A1Algebra 1
Master the concepts of A1Algebra 1.
214
GGeometry
Master the concepts of GGeometry.
215
A2Algebra 2
Master the concepts of A2Algebra 2.
216
PCPrecalculus
Master the concepts of PCPrecalculus.
217
CCalculus
Master the concepts of CCalculus.
218
I1Integrated 1
Master the concepts of I1Integrated 1.
219
I2Integrated 2
Master the concepts of I2Integrated 2.
220
I3Integrated 3
Master the concepts of I3Integrated 3.