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Fact Families - Worksheet 4 - 1st Grade

Medium

Understand the relationship between addition and subtraction (Medium)

12 problems · 10-15 minutes · Skills: addition, subtraction, number relationships

About This Worksheet

This medium-level worksheet contains 12 problems designed for 1st Grade students practicing fact families. Medium worksheets introduce larger numbers and varied question formats to deepen understanding and build fluency.

Fact families show that addition and subtraction are two sides of the same coin. This understanding makes both operations easier and faster.

How to Solve: Worked Example

Example Problem: Fact family: 5, 6, 11. Write 2 facts.
Solution Steps:
  1. Addition facts: 5 + 6 = 11 and 6 + 5 = 11.
  2. Subtraction facts: 11 − 5 = 6 and 11 − 6 = 5.
  3. Pick any 2, for example: 5 + 6 = 11 and 11 − 5 = 6.
Answer: 5+6=11, 11−5=6
Tip: The biggest number in a fact family is always the sum.
1
Fact family: 4, 2, 6. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
2
Fact family: 7, 3, 10. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
3
Fact family: 5, 6, 11. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
4
Fact family: 3, 4, 7. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
5
Fact family: 2, 5, 7. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
6
Fact family: 2, 6, 8. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
7
Fact family: 6, 3, 9. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
8
Fact family: 7, 6, 13. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
9
Fact family: 7, 7, 14. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
10
Fact family: 7, 7, 14. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
11
Fact family: 3, 3, 6. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___
12
Fact family: 6, 6, 12. Write 2 facts: ___ + ___ = ___ and ___ - ___ = ___

Answer Key

1. 4+2=6, 6-4=22. 7+3=10, 10-7=33. 5+6=11, 11-5=64. 3+4=7, 7-3=45. 2+5=7, 7-2=56. 2+6=8, 8-2=67. 6+3=9, 9-6=38. 7+6=13, 13-7=69. 7+7=14, 14-7=710. 7+7=14, 14-7=711. 3+3=6, 6-3=312. 6+6=12, 12-6=6

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This worksheet contains 12 problems. It typically takes 10-15 minutes to complete. An answer key with all solutions is included.