Adding or Subtracting Signed Numbers

-23 + 51

• -74
• 28
• 41
• 51

-5 + 14

• -19
• 9
• 11
• 19

-2 + 9

• -11
• -7
• 7
• 11

0 + -7

• -7
• 0
• 3
• 7

Bob lost 5 points on page one of his math test and he lost 9 points on page two of his math test.  Which equation best describes Bob progress on his math test?

• 5 + 9 = 14
• -5 + -9 = -4
• -5 + -9 = -14
• 5 + -9 = -4

-7 + (-2) = 

• 5
• -9
• 9
• -5

A football team gained 9 yards on one play and then lost 22 yards on the next. Write a sum of integers to find the overall change in field position.

• -9 + (-22) = -13
• 9 + (-22) = 13
• 9 + (-22) = -13
• none

 A soccer team is having a car wash. The team spent $55 on supplies. They earned $275, including tips. The team’s profit is the amount the team made after paying for supplies. Write a sum of integers that represents the team’s profit.

• -55 + 275 = -220
• none
• 55 + 275 = 220
• -55 + 275 = 220

What is the absolute value of 13?

• 13
• -13
• 0
• -0

When you add opposites, what do you get?

• 0
• A negative number
• Attraction
• You cannot add opposites