Unit 1 Math Review

Adding

100

4+4=?

8

200

5+6=?

11

300

9+4=?

13

400

8+9=?

17

500

11+7=?

18

Subtracting

100

5-2=?

3

200

9-5=?

4

300

12-6=?

6

400

20-5=?

15

500

17-9=?

8

Adding 3 Numbers

100

3+2+4=?

9

200

6+4+3=?

13

300

5+5+7=?

17

400

9+2+3=?

14

500

8+2+8=?

18

Word Problems

100

12 kids are at the library. 6 of them leave. How many kids are at the library now? 

6 kids

200

15 kids are at the park. 5 more join them. How many kids are at the park now?

20 kids

300

On Monday I made some cookies. On Tuesday I made 5 more. Now I have 10 cookies in ALL. How many cookies did I make on Monday? 

5 cookies

400

A flower shop has 15 flowers in all. 8 are pink. The rest are red. How many flowers are red? 

7 flowers are red

500

Some friends are at a zoo. 10 more join them. Now there are 16. How many friends were there to start? 

6 friends