Adding and Subtracting Positive and Negative Numbers on a Number Line

Evaluate the sum: -23 + 27 = ?

• -50
• 4
• 50
• -10

25 - (-4) = ? 

• 21
• -29
• 29
• -21

 -2 - (-8)

• 6
• -6
• -10
• 10

6 + (-8) 

• -2
• 2
• -14
• 14

Find the sum.
-4 + 3

• -1
• 7
• 1
• -7

What do you call numbers that are greater than zero and to the right of zero on the number line?

• integers
• opposite numbers
• positive numbers
• negative numbers

What do you call numbers that are less than zero and located to the left of zero on the number line?

• positive numbers
• negative numbers
• integers
• signed numbers

-9 + (-7)=

• 16
• 2
• -2
• -16

50 + (-8)=

• -42
• 58
• -58
• 42

(-63) + 49 =

• 14
• -14
• -112
• 112