Adding Positive Negative Numbers and Decimals

When adding decimals with the same sign you.....

• subtract and take the sign of the larger number

• add the opposite

• add and keep the sign

• subtract and keep the sign

When adding decimals with different signs you....

• subtract and take the sign of the larger number

• add the opposite

• add and keep the sign

• subtract and keep the sign

4/9 + (-2/3) = 

• 1 1/9

• -1 1/9

• 2/9

• -2/9

⁸/₁₅  +  (-⁶/₁₅)

• 14/15

• -2/15

• 2/15

• -14/15

When combining integers with same signs,

• ADD the numbers and keep the sign

• SUBTRACT the numbers

• MULTIPLY the numbers

• DIVIDE the numbers

When combining integers with DIFFERENT signs,

• ADD them

• SUBTRACT them & keep the sign of the larger number

• MULTIPLY them

• DIVIDE them

What do you call integers less than zero (on the left of the number line)? Select all that apply. Example: -5, -4, -3,...

• negative numbers

• negative integers

• positive numbers

• positive integers

What do you do when you're combining integers with different signs?

Example: -25 + 14 =

• (-) aka (find the difference of the two numbers)and keep sign of smaller number

• (-) aka (find the difference of the two numbers) and keep sign of larger number

When adding positive numbers on a number line, you move in what direction?

• Left

• Right

When adding (aka combining) negative numbers on a number line, you move in what direction?

• Left

• Right