Unit 2 Review

Add 3 Numbers

100

5 + 5 + 3 = ?

5 +5 = 10

10 + 3 = 13

5 + 5 + 3 = 13

200

7+ 4 + 3 = ?

7 + 3 = 10

10 + 4 = 14

7 + 4 + 3 =14

300

4 + 4 + 2 = ? 

4 + 4 = 8

8 + 2 = 10

4 + 4 + 2 = 10

400

4 + 6 + 7 = ?

4 + 6 = 10

10 + 7 = 17

4 + 6 + 7 = 17

500

5 + 9 + 1 = ?

9 + 1 =10

10 + 5 = 15

5 + 9 + 1 = 15

Teen Numbers

100

1 ten and 2 ones is _____ ?

12

200

1 ten and 6 ones is ___ ?

16

300

1 ten and 0 ones is ____ ?

10

400

Show 13 on your white board using base 10 blocks

1 rod and 3 cubes

500

Show 17 on your whiteboard using base 10 blocks.

1 rod and 7 cubes

Number Bonds (Part-Part-Whole)

100

Whole = 13 

One part = 10

What is the other part?

3

200

Whole = 10

One part = 6

What is the other part?

4

300

Whole = 9 

One part = 4

What's the other part?

5

400

Whole = 12

One part = 6

What is the other part?

6

500

One part is 7, the other part is 7.

What's the whole? 

14

Subtract Within 20

100

15 - 5 = ?

15 - 5 = 10

200

10 - 8 = ?

10 - 8 = 2

300

10 - 3 = ?

10 - 3 = 7

400

13 - 5 = ?

13 - 3 = 10

10 - 2 = 8

13 - 5 = 8

500

16 - 7 = ?

16 - 6 = 10

10 - 1 = 9

16  - 7 = 9

Doubles Facts/ Word Problems

100

4 + 4 = ?

4 + 4 = 8

200

3 + 3 + 1 = ?

3 + 3 = 6

6 + 1 = 7

3 + 3 + 1 = 7

300

8 + 8 = ?

8 + 8 = 16

400

7 ducks sat on the grass. 3 of them went to swim in the pond. How many ducks are still on the grass?

7 - 3 = 4

4 ducks are still on the grass.

500

9 ducks sat in the sun. 4 more ducks came to join them. How many ducks are in the sun? 

9 + 4 = 13

9 + 1 = 10

10 + 3 = 13

13 ducks are in the sun.