Add and subtract one-digit and 2-digit numbers

Front

21 - 8 = ?

Back

13

Front

25 - 8 = ?

Back

17

Front

63 + 8 = ?

Back

71

Front

18 - 9 = ?

Back

9

Front

35 + 4 = ?

Back

39

Front

What is subtraction?

Back

Subtraction is taking away a number from another number.

Front

What is addition?

Back

Addition is putting together two or more numbers to find the total.

Front

What is the result of 10 + 5?

Back

15

Front

What is the result of 15 - 7?

Back

8

Front

What is the result of 30 + 20?

Back

50