MathsFreePrintable

Addition and Subtraction Fun

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Addition and Subtraction Fun worksheet preview

Add & Subtract within 20

🎯 WALT: We Are Learning To add and subtract numbers within 20

Method I used today: Circle one or more: abacus / count on / number line / make 10

🧮 ABACUS HELP Section

Use your abacus to solve these problems!

1. 8 + 2 = ____

Number sentence: ________________

2. 15 - 5 = ____

Number sentence: ________________

3. 13 + 7 = ____

Number sentence: ________________

4. 11 - 1 = ____

Number sentence: ________________

5. 6 + 4 = ____

Number sentence: ________________

Show how you know: Pick one question above and explain your thinking.

🧠 NO ABACUS Section

Solve these using mental strategies!

6. 9 + 1 = ____

Number sentence: ________________

7. 14 - 4 = ____

Number sentence: ________________

8. 12 + 8 = ____

Number sentence: ________________

9. 16 - 6 = ____

Number sentence: ________________

10. 7 + 3 = ____

Number sentence: ________________

🌟 Extension Challenge: Look at question 8 above (12 + 8 = 20). Create a related subtraction fact and solve it!

My related fact: 20 - ____ = ____

Or create a missing number equation: ____ + 8 = 20

🎲 Number Detective Game: I'm thinking of two numbers that add to make 10. One number is 3 more than the other. What are my two mystery numbers?

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