This easy-level worksheet introduces first graders to fact families using friendly numbers up to 10. Children complete addition and subtraction equations for each family in Part A, then fill in missing numbers using related facts in Part B, such as recognizing that knowing 4 + 6 = 10 unlocks 10 - 6 = 4. Part C wraps up with true-or-false statements that check whether children can identify valid fact family relationships and groupings.
Style:
Fact Families: Addition & Subtraction
Part A: Complete the Fact Family Equations
Solve each equation. Write the answer on the line.
3
+7
7
+3
10
-3
10
-7
4
+6
6
+4
10
-4
10
-6
Part B: Fill in the Missing Number
Read each sentence. Write the missing number on the line.
1. The fact family for 3, 7, and 10 has 4 equations.
2. If 4 + 6 = 10, then 10 - 6 = 4.
3. If 7 + 3 = 10, then 10 - 3 = 7.
4. The numbers 4, 6, and 10 form a fact family.
5. 3 + 7 = 10, so 10 - 7 = 3.
Part C: True or False
Read each statement. Write True or False.
1. 3 + 7 = 10 and 10 - 7 = 3 are in the same fact family.
True False
2. The numbers 4, 5, and 10 form a fact family.
True False
3. Every fact family with three different numbers has four equations.
True False
Fact Families: Addition & Subtraction
★ Part A: Complete the Fact Family Equations
Solve each equation. Write the answer on the line.
3
+7
7
+3
10
-3
10
-7
4
+6
6
+4
10
-4
10
-6
★ Part B: Fill in the Missing Number
Read each sentence. Write the missing number on the line.
1) The fact family for 3, 7, and 10 has 4 equations.
2) If 4 + 6 = 10, then 10 - 6 = 4.
3) If 7 + 3 = 10, then 10 - 3 = 7.
4) The numbers 4, 6, and 10 form a fact family.
5) 3 + 7 = 10, so 10 - 7 = 3.
★ Part C: True or False
Read each statement. Write True or False.
1) 3 + 7 = 10 and 10 - 7 = 3 are in the same fact family.
True
False
2) The numbers 4, 5, and 10 form a fact family.
True
False
3) Every fact family with three different numbers has four equations.
True
False
Ready to Practice?
For Part A, solve each equation. For Part B, fill in the missing number. For Part C, write True or False.
16 Questions
15-20 minutes
Auto-graded
Retry anytime
🏆
Questions Correct
0
Correct
0
Incorrect
0
Skipped
0:00
Time
0%
Score
Review Your Answers
See what you got right, missed, or skipped.