Worked example
Find the missing number: 3 + ___ = 7.
Answer & why
Answer: 4
7 minus the known part 3 is 4.
Grade 1 · Math
Find a missing addend
Find the part needed to make a total up to ten.
8 generated examples + worked example
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8 reproducible examples from this math generator. Choose New examples for another set.
Question 1
Find the missing number: 5 + ___ = 7.
- 1
- 3
- 2
- 0
A hint
Subtract the known addend from the total.
Answer & why
Answer: 2
7 − 5 = 2, so the missing addend is 2.
Question 2
Find the missing number: 5 + ___ = 9.
- 8
- 5
- 4
- 3
A hint
Subtract the known addend from the total.
Answer & why
Answer: 4
9 − 5 = 4, so the missing addend is 4.
Question 3
Find the missing number: 4 + ___ = 8.
- 8
- 5
- 6
- 4
A hint
Subtract the known addend from the total.
Answer & why
Answer: 4
8 − 4 = 4, so the missing addend is 4.
Question 4
Find the missing number: 3 + ___ = 4.
- 2
- 0
- 3
- 1
A hint
Subtract the known addend from the total.
Answer & why
Answer: 1
4 − 3 = 1, so the missing addend is 1.
Question 5
Find the missing number: 0 + ___ = 0.
- 0
- 2
- 4
- 3
A hint
Subtract the known addend from the total.
Answer & why
Answer: 0
0 − 0 = 0, so the missing addend is 0.
Question 6
Find the missing number: 4 + ___ = 7.
- 1
- 2
- 3
- 7
A hint
Subtract the known addend from the total.
Answer & why
Answer: 3
7 − 4 = 3, so the missing addend is 3.
Question 7
Find the missing number: 4 + ___ = 4.
- 3
- 2
- 4
- 0
A hint
Subtract the known addend from the total.
Answer & why
Answer: 0
4 − 4 = 0, so the missing addend is 0.
Question 8
Find the missing number: 4 + ___ = 6.
- 5
- 3
- 6
- 2
A hint
Subtract the known addend from the total.
Answer & why
Answer: 2
6 − 4 = 2, so the missing addend is 2.