Integer Addition with Two Color Counters

Which addition equation matches the problem modeled below? (Yellow is positive and Red is negative)

• -2 + -4 = -6

• 2 + -4 = -2

• 4 + 2 = 6

What is a zero pair? 

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

• -7 + 4 = -3
• 7 + (-4) = 3
• 7 - 4 = 11
• 7 + (-4) = -11

Which expressions represents the 2-color counters shown in the image?

• -4 + 5

• 4 + (-5)

• -4 + (-5)

• -5 + (-4)

When you add opposites, what do you get?

• 0

• A negative number

• A positive number

• You cannot add opposites

What sum does the set of tiles model? Yellow is positive

• 3 + 2 = 5

• 3 + 2 = -5

• -3 + (-2) = -5

• -3 + (-2) = +5

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

What do we call a number less than zero?

• integer
• negative number
• whole number
• positive integer

Which problem can this represent if yellow is positive?

• 5 + -2 = -3

• -5 + 2 = 7

• 5 + -2 = 3

What sum does the set of tiles model?

• (+1) + (-4) = +3

• (+1) + (-4) = -3

• (-1) + (+4) = -3

• (-1) + (+4) = +3