Make a Number Using Addition - Sums up to 10
🔨 A number can be built in many different ways! Just like you can build a house with different blocks, you can "make" a number like 7 using different pairs of smaller numbers. Let's be number builders!
Do this: Read the concept below, then try the quiz or activity.
Concept
This is all about seeing the "parts" inside of a "whole" number. The number 5 is the whole. It can be made of parts like 1 and 4, or 2 and 3.
🎯 How to Break Apart a Number:
Let's find all the ways to make the number 6.
1. Start with 1: If one part is 1, what's the other part?
* 1 + 5 = 6
2. Try 2: If one part is 2, what's the other part?
* 2 + 4 = 6
3. Try 3:
* 3 + 3 = 6
4. Keep going! What about 4?
* 4 + 2 = 6 (Hey, that's a turnaround fact of 2+4!)
5. And 5?
* 5 + 1 = 6 (A turnaround of 1+5!)The number pairs that make 6 are: * 1 and 5 * 2 and 4 * 3 and 3
This is also called "decomposing" a number. It's a very important skill for addition and subtraction!
Try it
Let's be number builders and find all the ways to make these numbers!
Instructions: Write all the addition sentences you can think of that make the target number.
1. Make the number 5:
* 0 + 5 = 5
* 1 + ___ = 5
* 2 + ___ = 5
* (Can you find the rest?)2. Make the number 7:
* ___ + ___ = 7
* ___ + ___ = 7
* ___ + ___ = 7
* ___ + ___ = 73. Make the number 8:
* Find at least 4 ways to make 8!🏆 Pattern Challenge: Look at the ways to make the number 9: 0+9, 1+8, 2+7, 3+6, 4+5 What do you notice about the first number in each pair? What about the second number?
4. Circle all the pairs that make 10:
* 4 + 6
* 2 + 7
* 5 + 5
* 9 + 1
* 3 + 8