2.0A2 Review

Add and Subtract Single Digit

100

Solve: 3+4=     7-3=

What is 7, 4

200

Solve: 5+8=   9-5=

What is 13, 4

300

Solve: 9+7=.   8-5

What is 16, 3

400

Solve: 9+9 =.   9-3

What is 18, 6

Add and Subtract within 20

100

Solve: 11+3=.    _ +4=9

What is 14, 5

200

Solve: _ +15=19.  20-6=

 What is 4,14

300

Solve:  _+6=15.   17-9=

What is 9, 8

400

Solve: 17= 8+_    16-8=

What is 9, 8

Fact Families

100

If 5+3=8, find the unknown number:

8- _ =5

What is 3

200

If 9+6=15, find the unknown number:

15- _ =9

What is 6

300

Use these 3 numbers to make an addition and subtraction equation:

7,15,8

What is :

7+8=15 or 8+7=15

15-8=7 or 15-7=8

400

Use these 3 numbers to make all addition and subtraction equations.

7,12,19

What is: 

7+12=19   12+7=19

19-12=7.   19-7-12

add and subtract within 100

100

Solve:

45-15

What is 30.

200

Solve: 7+5+3+4

What is 19.

300

Solve: 85-19

What is 66.

400

Solve: 97-42

What is 55