Inverse Operations

Front

What are inverse operations?

Back

Inverse operations are pairs of mathematical operations that undo each other. For example, addition and subtraction are inverse operations, as are multiplication and division.

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.

Front

What is the inverse operation of subtraction?

Back

The inverse operation of subtraction is addition.

Front

What is the inverse operation of multiplication?

Back

The inverse operation of multiplication is division.

Front

What is the inverse operation of division?

Back

The inverse operation of division is multiplication.

Front

If x + 5 = 12, what is x?

Back

x = 12 - 5 = 7.

Front

If x - 3 = 10, what is x?

Back

x = 10 + 3 = 13.

Front

If 4x = 20, what is x?

Back

x = 20 ÷ 4 = 5.

Front

If x/3 = 9, what is x?

Back

x = 9 × 3 = 27.

Front

What is the first step to solve x + 7 = 15?

Back

Subtract 7 from both sides: x = 15 - 7.