Adding Using Number Lines

What equation is modeled?

• 15 + 25 = -10

• 15 + -25 = -10

• -10 + 15 = -10

• -25 + 15 = -10

What equation is modeled?

• 6 + -6 = -6

• -6 + 6 = 12

• 6 + -12 = -6

• -12 + 6 = -6

When adding negative numbers on a number line, you move to the ____________.

• Right

• Left

Which addition expression matches the problem shown on the number line?

• 3 + -4

• -4 + 3

• 7 + -4

• -4 + 7

What equation is modeled?

• 7 + -6 = -6

• 7 + -13 = -6

• 7 + -14 = -6

• -6 + -14 = -6

Which number is your STARTING number in the following problem:

• -2

• 7

Look at the number line.

• –2 + 4 =  –2

• –2 + (–4) =  –6

• 4 + (–6) =  –2

• 4 + (–2) =  6

What is the expression for the number line?

• 6 + (-3)

• (-3) + 6

• 6 + (-9)

2 units to the left of 3 is:

• -1

• 6

• 1

• 5

6 units to the right of -1 is :

• 5

• -7

• -5

• 7