Integer Addition / Subtraction (Models and Problems)

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, the result is positive. If both are negative, the result is negative. If one is positive and the other is negative, subtract the smaller absolute value from the larger absolute value 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 -5 + 3?

Back

-2

Front

What is the result of 7 - 10?

Back

-3

Front

How do you represent a temperature drop of 5 degrees from -10 degrees?

Back

You calculate -10 - 5 = -15 degrees.

Front

What is the result of -12 - (-5)?

Back

-7

Front

If the temperature is -14°F and it drops 7°F, what is the new temperature?

Back

-21°F

Front

What is the result of 4 - (-3)?

Back

7

Front

What is the result of -3 - 4?

Back

-7