Unit 1 Review- Addition and Subtraction Within 20

Find the Sum

100

Find the sum of: 8+6

14

200

Find the sum of: 12+8

20

300

Find the sum of: 11+7

18

400

Find the sum of: 14+5

19

500

Find the sum of: 11+8

19

Find the Difference

100

Find the difference of: 12-8

4

200

Find the difference of: 17-8

9

300

Find the difference of: 15-4

11

400

Find the difference of: 13-5

8

500

Find the difference of: 20-10

10

Make a 10

100

4+ ? =10

6

200

7+ ? =10

3

300

8+ ? =10

2

400

9+ ? =10

1

500

3+ ? =10

7

Word Problems

100

Mrs. Hodgson bought Levi 7 toys and then 5 more the next day. How many toys did she buy Levi?

12 toys

200

Levi had 12 toys and then he gave his friend 4 toys to borrow. How many toys did Levi have left?

8 toys left. 

300

Mrs. Lewis bought her sons Chickfila for dinner. Noah got 6 chicken nuggets and Owen also got 6 chicken nuggets. How many chicken nuggets did they eat in all?

12 nuggets

400

Mrs. Lewis' sons had 12 chicken nuggets to eat. Together they ate 5 of them. How many chicken nuggets are left?

7 chicken nuggets.

500

Mrs. Hodgson had 20 dollars to spend at the store. She bought her class some popsicles for 5 dollars and then bought Levi another toy for 5 dollars. How much money does she have left to spend?

10 dollars