Adding Integer Chips

What sum does the set of tiles model? Yellow is + and Red is -

• (+1) + (-4) = +3

• (+1) + (-4) = -3

• (-1) + (+4) = -3

• (-1) + (+4) = +3

• 2

• -2

• 4

• -4

• 6

• -6

• 2

• -2

• -6

• 6

• 2

• -2

• -10

• 10

• 4

• -4

• 10

• -10

• 2

• -2

3 + -7 =

• 10

• 4

• -10

• -4

What sum does the set of tiles model?

• (-4) + (+3) = -1

• (+4) + (-3) = -1

• (+4) + (-3) = +1

• (-4) + (+3) = +1

#1 Hello World

• 7

• 5

• -7

• -5

Will the sum of 12 + (-3) be positive or negative?

• positive

• negative