Add and Subtract Integers

Front

What is an integer?

Back

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

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 difference between two integers?

Back

The difference is the result of subtracting one integer from another.

Front

How do you find the absolute value of an integer?

Back

The absolute value of an integer is its distance from zero on the number line, regardless of direction. It is always a non-negative number.

Front

What is the sum of -5 and 3?

Back

-5 + 3 = -2.

Front

What is the sum of -12, 3, and -5?

Back

-12 + 3 + (-5) = -14.

Front

What is the result of 5 - (-9)?

Back

5 - (-9) = 5 + 9 = 14.

Front

If the temperature in Boston is -20 degrees and it is 7 degrees colder in New York, what is the temperature in New York?

Back

-20 - 7 = -27 degrees.

Front

What is the difference in elevation between Mt. Everest (29,028 feet) and the Dead Sea (-485 feet)?

Back

29,028 - (-485) = 29,028 + 485 = 29,513 feet.