Two-Digit Addition & Subtraction

Front

What is 25 + 50?

Back

75

Front

What is 84 - 50?

Back

34

Front

What is 71 - 10?

Back

61

Front

What is 45 - 20?

Back

25

Front

What is 21 + 10?

Back

31

Front

What do we call the result of addition?

Back

Sum

Front

What do we call the result of subtraction?

Back

Difference

Front

What is the first step in solving a two-digit addition problem?

Back

Align the numbers by place value.

Front

What is the first step in solving a two-digit subtraction problem?

Back

Align the numbers by place value.

Front

If you add 10 to a number, what happens to the tens place?

Back

It increases by 1.