Subtraction within 10 — Answer Key
Part A: Multiple Choice
Circle the correct answer for each question.
1. Sam has 8 apples. He gives away 3. How many apples does Sam have left?
A) 4
B) 5
C) 6
D) 3
8 - 3 = 5. Sam started with 8 apples and gave away 3, so he has 5 left.
2. There are 10 birds on a fence. 6 fly away. How many birds are still on the fence?
A) 5
B) 3
C) 4
D) 6
10 - 6 = 4. There were 10 birds and 6 flew away, so 4 birds remain on the fence.
3. Mia has 7 stickers and Ben has 4 stickers. How many more stickers does Mia have than Ben?
A) 2
B) 4
C) 1
D) 3
7 - 4 = 3. Mia has 3 more stickers than Ben.
4. There are 9 crayons in a box. A child takes out 5. Which number sentence shows how many are left?
A) 9 + 5 = 14
B) 9 - 5 = 4
C) 5 - 9 = 4
D) 9 - 4 = 5
9 - 5 = 4. Starting with 9 and taking out 5 gives 4 remaining crayons.
Part B: Fill in the Missing Number
Write the missing number to complete each number sentence.
1. 10 - 5 = 5
10 - 5 = 5. The missing minuend is 10 because 5 + 5 = 10.
2. 8 - 7 = 1
8 - 7 = 1. The missing subtrahend is 7 because 8 - 7 = 1.
3. 10 - 3 = 7
10 - 3 = 7. The missing minuend is 10 because 7 + 3 = 10.
4. 6 - 6 = 0
6 - 6 = 0. When you subtract a number from itself, the answer is always 0.
5. 10 - 8 = 2
10 - 8 = 2. The missing minuend is 10 because 2 + 8 = 10.