Adding Signed Numbers Review

Adding Signed Numbers Review

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Multiple Choice

Is this problem "Same Sign" or "Different Sign"?

-4 + 5

• Same Sign

• Different Sign

Multiple Choice

DIFFERENT SIGNS...

• Cancel Out

  (Subtract)

• Combine

  (Add)

Multiple Choice

SOLVE!

-4 + 5

• 1

• -1

• 9

• -9

Multiple Choice

Is this problem "Same Sign" or "Different Sign"?

-3 + (- 6)

• Same Sign

• Different Sign

Multiple Choice

SAME SIGNS...

• Cancel Out

  (Subtract)

• Combine

  (Add)

Multiple Choice

SOLVE!

-3 + (-6)

• 3

• -3

• 9

• -9

Lightening Round!

You will have 10 seconds to decide if the signed addition problem will CANCEL OUT (subtract) or COMBINE (add).

Multiple Choice

2 + (-4)

• Cancel Out

  (Subtract)

• Combine

  (Add)

Multiple Choice

-10 + (-15)

• Cancel Out

  (Subtract)

• Combine

  (Add)

Multiple Choice

20 + (-20)

• Cancel Out

  (Subtract)

• Combine

  (Add)

Multiple Choice

-1 + (-8)

• Cancel Out

  (Subtract)

• Combine

  (Add)

Multiple Choice

-16 + 2

• Cancel Out

  (Subtract)

• Combine

  (Add)

SOLVE!

You will have 30-60 seconds to solve the signed addition problems!

Make sure you have scratch paper out!

Multiple Choice

2 + (-4)

• 6

• -6

• 2

• -2

Multiple Choice

-10 + (-15)

• -25

• 25

• -5

• 5

Multiple Choice

20 + (-20)

• -40

• 0

• 40

Multiple Choice

-1 + (-8)

• -9

• 9

• 7

• -7

Multiple Choice

-16 + 2

• 14

• -14

• -20

• 20