Subtraction Within 10 — Answer Key
Part A: Trace the Words
Trace each word carefully by following the dotted lines.
1. minus
2. less
3. take
4. left
5. away
6. fewer
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 5 - 2 = 3
5 - 2 = 3. Start at 5 and count back two steps: 4, 3. That leaves 3.
2. 7 - 1 = 6
7 - 1 = 6. Taking just one away from 7 gives the number right before it, which is 6.
3. 4 - 3 = 1
4 - 3 = 1. If you have 4 blocks and take 3 away, only 1 block is left.
4. 6 - 4 = 2
6 - 4 = 2. Count back 4 from 6: 5, 4, 3, 2. The answer is 2.
Part C: True or False?
Read each statement. Circle True or False.
1. 8 - 3 = 5
True False
True. Counting back 3 from 8 gives 7, 6, 5, so 8 - 3 really does equal 5.
2. 6 - 2 = 3
True False
False. When you count back 2 from 6 you land on 4, not 3, so 6 - 2 = 4.
3. 9 - 4 = 5
True False
True. Starting at 9 and taking away 4 leaves 5, which matches the addition fact 5 + 4 = 9.