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
Count on from 2 by adding 6 more: 3, 4, 5, 6, 7, 8. So 2 + 6 = 8.
2. 5 + 5 = 10
Two groups of 5 are a doubles fact, and 5 + 5 makes 10.
3. 3 + 3 = 6
Doubling 3 gives 6, because 3 + 3 = 6.
4. 1 + 4 = 5
Begin with 1 and add 4 more to land on 5, so 1 + 4 = 5.
Part C: True or False?
Read each statement. Circle True or False.
1. 6 + 4 = 10
True False
True. 6 + 4 = 10, which is also a make-ten fact.
2. 3 + 5 = 9
True False
False. 3 + 5 really equals 8, not 9. Counting 3 then 5 more lands on 8.
3. 0 + 7 = 7
True False
True. Adding zero does not change the number, so 0 + 7 stays 7.