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 result of adding two negative integers?

Back

The result is always a negative integer.

Front

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

Back

The result depends on the absolute values; if the positive integer is larger, the result is positive, and if the negative integer is larger, the result is negative.

Front

What is the rule for subtracting integers?

Back

To subtract an integer, add its opposite. For example, a - b is the same as a + (-b).

Front

Calculate: -5 + (-8)

Back

-13

Front

Calculate: -4 + 2

Back

-2

Front

Calculate: -7 + (-19)

Back

-26

Front

If the temperature is 81F and it drops by 11F, how do you express this mathematically?

Back

81 + (-11) is the correct expression.

Front

Calculate: 6 + (-4)

Back

2

Front

What does the term 'absolute value' mean?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction.