Adding and Subtracting Integers

Front

What is the result of subtracting a negative number?

Back

Subtracting a negative number is the same as adding its positive counterpart. For example, -3 - (-4) = -3 + 4 = 1.

Front

What does the number line represent in the expression −3 + 5?

Back

The number line shows the movement from -3 to the right by 5 units, resulting in a final position of 2.

Front

What is the sum of -8 and -6?

Back

-8 + (-6) = -14.

Front

What is the sum of -9 and -12?

Back

-9 + (-12) = -21.

Front

If a diver is at -30 feet and dives down 12 feet, what is her new elevation?

Back

-30 - 12 = -42 feet.

Front

How do you add two negative integers?

Back

When adding two negative integers, you add their absolute values and keep the negative sign. For example, -5 + (-3) = -8.

Front

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

Back

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

Front

What is 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. For example, |-5| = 5.

Front

What happens when you subtract a positive integer from a negative integer?

Back

Subtracting a positive integer from a negative integer results in a more negative integer. For example, -5 - 3 = -8.

Front

What is the rule for subtracting integers?

Back

To subtract an integer, add its opposite. For example, a - b = a + (-b).