K-5 friendly lesson
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Addition word problems - sums to 20

Word problems tell a story. Find the numbers, choose addition, and solve.

Lesson 8

Concept

When two groups join together, use addition. Clue words: - in all - total - together - altogether Example: Mia has 8 stickers. Leo gives her 5 more. How many stickers does she have in all? 8 + 5 = 13.

Try it

Solve: 1. Sam has 6 marbles. He finds 7 more. How many now? 2. There are 9 birds on a tree and 4 more fly in. How many birds in all? 3. A box has 10 crayons. Ava adds 6 crayons. How many crayons total? 4. Write your own addition story with answer 15.