Fluently adding and subtracting within 20

Front

9 + 7 = ?

Back

16

Front

6 + 2 = ?

Back

8

Front

8 + 0 = ?

Back

8

Front

19 + 0 = ?

Back

19

Front

2 + 6 = ?

Back

8

Front

What is addition?

Back

Addition is combining two or more numbers to get a total.

Front

What is subtraction?

Back

Subtraction is taking one number away from another.

Front

What is the sum of 5 and 3?

Back

8

Front

What is the difference between 10 and 4?

Back

6

Front

What do you get when you add 1 to 9?

Back

10