Turn Subtraction to Addition

Front

What is the result of rewriting the subtraction problem -2 - 9 as an addition problem?

Back

-2 + (-9)

Front

How do you rewrite the subtraction problem -5 - (-3) as an addition problem?

Back

-5 + 3

Front

Convert the subtraction problem 15 - (-7) to an addition problem.

Back

15 + 7

Front

How do you subtract -6 from 2 using addition?

Back

2 + 6

Front

Rewrite the subtraction problem -12 - (-5) as an addition problem.

Back

-12 + 5

Front

What is the general rule for converting a subtraction problem to an addition problem?

Back

Change the subtraction to addition and change the sign of the second number.

Front

If you have a subtraction problem like a - b, how can it be expressed as an addition problem?

Back

a + (-b)

Front

What does subtracting a negative number mean in terms of addition?

Back

Subtracting a negative number is the same as adding its positive counterpart.

Front

How would you express the problem 7 - (-3) using addition?

Back

7 + 3

Front

What is the addition equivalent of the subtraction problem -4 - 6?

Back

-4 + (-6)