Adding and Subtracting Integers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, |-5| = 5.

Front

How do you add two integers with the same sign?

Back

When adding two integers with the same sign, add their absolute values and keep the common sign. For example, -3 + -5 = -8.

Front

How do you add two integers with different signs?

Back

When adding two integers with different signs, subtract the smaller absolute value from the larger absolute value and take the sign of the integer with the larger absolute value. For example, 5 + -3 = 2.

Front

What is the additive inverse of a number?

Back

The additive inverse of a number is the number that, when added to the original number, results in zero. For example, the additive inverse of 7 is -7.

Front

What is the result of -7 + 9?

Back

The result of -7 + 9 is 2.

Front

What is the result of -12 - (-4)?

Back

The result of -12 - (-4) is -8.

Front

What is the absolute value of -21?

Back

The absolute value of -21 is 21.

Front

If the temperature changes from -12 degrees to 35 degrees, what is the change in temperature?

Back

The change in temperature is 47 degrees.

Front

What is the result of 8 + (-3)?

Back

The result of 8 + (-3) is 5.