Adding and Subtracting Directed Numbers

Front

What is a directed number?

Back

A directed number is a number that has a positive or negative sign, indicating its position relative to zero on a number line.

Front

How do you add two positive numbers?

Back

When adding two positive numbers, simply add their absolute values. The result is positive.

Front

How do you add two negative numbers?

Back

When adding two negative numbers, add their absolute values and the result is negative.

Front

What happens when you add a positive number to a negative number?

Back

When adding a positive number to a negative number, subtract the smaller absolute value from the larger absolute value. The sign of the result is the same as the number with the larger absolute value.

Front

What is the rule for subtracting directed numbers?

Back

Front

Calculate: 3 - (-8)

Back

11

Front

Calculate: 6 - (-4)

Back

10

Front

Calculate: -4 - 2

Back

-6

Front

Back

Front

Calculate: -18 + (-6)

Back

-24