Addition Within 10 — Answer Key
Part A: Trace the Words
Trace each word carefully by following the dotted lines.
1. plus
2. sum
3. add
4. equal
5. more
6. total
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 2 + 6 = 8
Start at 2 and count up 6 more. You land on 8, so 2 + 6 = 8.
2. 5 + 5 = 10
Start at 4 and count up 3 more. You land on 7, so 4 + 3 = 7.
3. 3 + 3 = 6
5 + 5 is a doubles fact. 5 plus 5 equals 10.
4. 1 + 4 = 5
Start at 1 and count up 6 more. You land on 7, so 1 + 6 = 7.
Part C: True or False?
Read each statement. Circle True or False.
1. 6 + 4 = 10
True False
True. 3 + 6 really does equal 9. You can check by counting up 6 from 3.
2. 3 + 5 = 9
True False
False. 5 + 4 equals 9, not 10. Count up 4 from 5 to check.
3. 0 + 7 = 7
True False
True. 1 + 0 really does equal 1. You can check by counting up 0 from 1.