Number bonds to 20
1st grade (Year 2 in England) · 16 questions · Common Core: 1.OA.C.6 · England: Y1 Addition and subtraction
Name
Date
Score/ 16
Question 1
16 + __ = 20
Answer
Question 2
A game needs 20 counters. Mateo has 15. How many more counters does Mateo need?
Answer
Question 3
2 + 8 = 10. So 2 + __ = 20
Answer
Question 4
11 + __ = 20
Answer
Question 5
A game needs 20 counters. Grace has 14. How many more counters does Grace need?
Answer
Question 6
8 + 2 = 10. So 8 + __ = 20
Answer
Question 7
13 + __ = 20
Answer
Question 8
A game needs 20 counters. Elena has 13. How many more counters does Elena need?
Answer
Question 9
3 + 7 = 10. So 3 + __ = 20
Answer
Question 10
15 + __ = 20
Answer
Question 11
A game needs 20 counters. Hiro has 3. How many more counters does Hiro need?
Answer
Question 12
6 + 4 = 10. So 6 + __ = 20
Answer
Question 13
19 + __ = 20
Answer
Question 14
A game needs 20 counters. Ava has 17. How many more counters does Ava need?
Answer
Question 15
9 + 1 = 10. So 9 + __ = 20
Answer
Question 16
10 + __ = 20
Answer
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