Integer +/- with Chip Models

What equation is modeled by the image?

Yellow is +

Red is -

• (+3) + (+2) = +5

• (+3) + (+2) = -5

• (-3) + (-2) = -5

• (-3) + (-2) = +5

What sum does the set of tiles model?

Yellow is +

Red is -

• (+1) + (-4) = +3

• (+1) + (-4) = -3

• (-1) + (+4) = -3

• (-1) + (+4) = +3

What sum does the set of tiles model?

yellow +

red -

• (-4) + (+3) = -1

• (+4) + (-3) = -1

• (+4) + (-3) = +1

• (-4) + (+3) = +1

What equation is shown by the chip model?

yellow +

red -

• (-4) + (-2) = +6

• (+4) + (+2) = -6

• (+4) + (-2) = -6

• (-4) + (-2) = -6

What equation is shown by the chip model?

yellow +

red -

• (+2) + (-3) = -1

• (+2) + (-3) = +1

• (-2) + (+3) = -1

• (-2) + (+3) = +1

What is a zero pair? 

• Two negatives
• Two positives
• One negative and one positive

If you are adding 2 negative numbers, will your answer be positive or negative?

• negative
• positive

What is the sum shown by the chip model?

• 7
• 5
• -7
• -5

What is true about opposites?

• They are on the same side of zero
• They are the same distance away from zero.
• They are not really opposites

What is the definition of a zero pair?

• Two negatives added together

• When you add zero and zero together

• A pair of numbers whose sum is zero