Adding Integers Model

Adding integers with different signs

• Subtract and keep the sign of the LARGER number.

• Subtract and keep the number of the smaller signs.

• Adding integers is hard!

• Subtract and do not change the signs!

When adding a NEGATIVE number and NEGATIVE number,  your result will be...

• Positive

• Negative

• The sign of the larger absolute value

• The sign of the smaller absolute value

When you add opposites, what do you get?

• Zero

• A negative number

• It depends on which number has a larger absolute value.

• You cannot add opposites

Which addition equation matches the problem modeled below?

• -4 + -2 = -6

• 4 + 2 = 6

• -4 + -6 + -2

Which addition equation matches the problem modeled below?

• -5 +-3 = -2

• -2 + -3 = -5

• -2 +3 = -5

Which addition equation matches the problem modeled below?

• -6 + -9= 3

• -6 + 9 = 3

• -6 + 3 = 9

Which addition equation matches the problem modeled below?

• -2 + -4 = -6

• 2 + -4 = -2

• 4 + 2 = 6

• 4 + 1 = 5
• 4 - (-1) = 5
• 4 + -1 = 3

• -4 + 5 = -1
• 4 + -5 = -1
• 4 + -5 = -9

• 4 - 5 = -1
• 5 - 4 = -1
• 9 - 4 = -5