Adding and Subtracting Integers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but not a fraction or decimal.

Front

What does it mean to add integers?

Back

Adding integers involves combining their values. If both integers are positive, you add their absolute values. If both are negative, you add their absolute values and keep the negative sign. If one is positive and one is negative, subtract the smaller absolute value from the larger one and take the sign of the integer with the larger absolute value.

Front

What does it mean to subtract integers?

Back

Subtracting integers means adding the opposite. For example, to subtract a negative integer, you add its positive counterpart.

Front

What is the result of adding a positive integer and a negative integer?

Back

The result depends on the absolute values of the integers. You subtract the smaller absolute value from the larger one and take the sign of the integer with the larger absolute value.

Front

What is the result of -5 + 3?

Back

-5 + 3 = -2.

Front

What is the result of -7 - (-2)?

Back

-7 - (-2) = -7 + 2 = -5.

Front

What is the result of 4 - 9?

Back

4 - 9 = -5.

Front

What is the result of -10 + 10?

Back

-10 + 10 = 0.

Front

What is the change in temperature from 16°C to -3°C?

Back

The change in temperature is -19°C.

Front

What is the change in elevation from -600 feet to 92 feet?

Back

The change in elevation is +692 feet.