Adding Subtracting Numbers

Use the number line to find the sum.
3 + (-12) =

• -9
• 9
• -15
• 15

Use the number line to find the sum.
-4 + (-5) =

• -9
• 9
• -1
• 1

What equation is modeled?

• 6 + -6 = -6
• -6 + 6 = 12
• 6 + -12 = -6
• -12 + 6 = -6

What is the expression for the number line?

• 6 + (-3)
• (-3) + 6
• 6 + (-9)

When you add opposites, what do you get?

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

Which problem does not have a sum of (-4)?

• (-9) + (-5)
• 3 + (-7)
• (-9) + 5 
• (-3) + (-1)

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

On the first play of a game, a running back gained 7 yards. On the next play, he lost 19 yards. Find the change in yards in the two plays. 

• 26 yards
• -26 yards
• 12 yards
• -12 yards

What equation is modeled?

• 15 + 25 = -10
• 15 + -25 = -10
• -10 + 15 = -10
• -25 + 15 = -10

What equation is modeled?

• 7 + -6 = -6
• 7 + -13 = -6
• 7 + -14 = -6
• -6 + -14 = -6