Addition & Subtraction Word Problems Within 20 — Answer Key
Part A: Trace the Words
Trace each word carefully by following the dotted lines.
1. solve
2. total
3. minus
4. left
5. plus
6. fewer
Part B: Fill in the Blank
Write the missing word or number on each line.
1. Tom has 5 apples. He gets 3 more. How many in all? 8
Tom gets more apples, so we add: 5 + 3 = 8 apples in all.
2. There are 9 birds. 4 fly away. How many are left? 5
Birds flying away means we take them away: 9 - 4 = 5 birds are left.
3. Mia has 7 crayons. She finds 6 more. How many now? 13
Finding more crayons means she has extra, so we add: 7 + 6 = 13 crayons now.
4. A box has 10 balls. 3 roll out. How many remain? 7
Balls rolling out means fewer are left, so we subtract: 10 - 3 = 7 balls remain.
Part C: True or False?
Read each statement. Circle True or False.
1. 6 + 5 = 11
True False
True. Count on 5 from 6: 7, 8, 9, 10, 11. So 6 + 5 does equal 11.
2. 14 - 7 = 6
True False
False. 14 - 7 = 7, not 6. If you count back 7 from 14, you land on 7.
3. 8 + 4 = 12
True False
True. Count on 4 from 8: 9, 10, 11, 12. So 8 + 4 does equal 12.