Any real number multiplied by 1 equals itself.

Without performing any multiplication steps, we know that NUM \times 1 = NUM.

This fact about multiplying by 1 is known as the identity property of multiplication, and it is useful for finding equivalent fractions.

Any real number plus 0 equals itself.

Without performing any addition steps, we know that NUM + 0 = NUM.

This fact about adding by 0 is known as the identity property of addition.

Any real number x (except 0) can be multipled by \dfrac{1}{x} to get 1.

Without performing any multiplication or division, we know that NUM \times \dfrac{1}{NUM} = 1.

Thus, the answer is \dfrac{1}{NUM}.

This fact about multiplying by \dfrac{1}{x} is known as the multiplicative inverse property.

Adding the negative inverse of a number to that number equals 0.

Without performing any addition or subtraction, we know that NUM +(-1 * NUM) = 0.

Thus, the answer is -1 * NUM.

This fact about adding negative inverses is known as the additive inverse property.