Adding and Subtracting 10's

Front

10 + 10 = ?

Back

20

Front

20 + 10 = ?

Back

30

Front

40 + 60 = ?

Back

100

Front

30 + 30 = ?

Back

60

Front

30 - 10 = ?

Back

20

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 do you get when you add 10 to a number?

Back

You get a number that is 10 more than the original number.

Front

What do you get when you subtract 10 from a number?

Back

You get a number that is 10 less than the original number.

Front

If you have 10 apples and you get 10 more, how many do you have?

Back

20 apples.