MathIQO worksheet
Recall addition and subtraction facts to 20 · Grade 2 · B2.2
Name: ______________________
Date: ______________________
- 1
What is 5 + 7?
Warm-upAnswer:
- 2
What is 10 + 6?
Warm-upAnswer:
- 3
What is 10 + 3?
Warm-upAnswer:
- 4
What is 13 − 6?
On levelAnswer:
- 5
What is 14 − 5?
On levelAnswer:
- 6
What is 15 − 6?
On levelAnswer:
- 7
Find the missing number: 2 + __ = 4
ChallengeAnswer:
- 8
Find the missing number: 1 + __ = 17
ChallengeAnswer:
- 9
Find the missing number: 3 + __ = 15
ChallengeAnswer:
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Worksheet code: eyJzIjoibnVtYmVyLWFkZC1mYWN0cy10by0yMCIsImQiOlszNDgxNTAwNTIsMTU1NDY2MTQ4MywxNzMyNTIwMiw4ODQ3MjI4OTcsODY1ODA2NjAzLDE1MDAzODQ5NTUsMTYwOTUxMDc2MSw3NDcwODIzMjMsMjAzNDg4MjU0XSwidiI6MX0.362b344cc806
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Answer key · Recall addition and subtraction facts to 20
- 1.12 — Counting on 7 from 5 gives 12.
- 2.16 — Counting on 6 from 10 gives 16.
- 3.13 — Counting on 3 from 10 gives 13.
- 4.7 — Counting back 6 from 13 gives 7.
- 5.9 — Counting back 5 from 14 gives 9.
- 6.9 — Counting back 6 from 15 gives 9.
- 7.2 — 4 − 2 = 2, so 2 + 2 = 4.
- 8.16 — 17 − 1 = 16, so 1 + 16 = 17.
- 9.12 — 15 − 3 = 12, so 3 + 12 = 15.