Adding Integers

Which addition equation matches the problem modeled below?

• -2 + -4 = -6

• 2 + -4 = -2

• 4 + 2 = 6

Would the solution of the addition problem modeled by the colored counters shown be positive, negative, or neutral?

• Negative

• Neutral

• Positive

Add 8 + (-21) = ___

Add (-9) + 18 = ___

• 4 + 2 = 6
• -4 + 2 = -2
• 4 + (-2) = 2
• -4 + (-2) = -6

• 1 + 5 = 6
• -1 + 5 = 4
• 1 + (-5) = -4
• -1 + (-5) = -6

-4 + 5

4 + 5

4 + (-5)

-4 + (-5)

• -4 + 5

• 4 + 5

• 4 + (-5)

• -4 + (-5)

Find the value:
-4 + (-3)

• -7

• 1

• -1

• 7

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

-10+4

• -14

• 14

• -6

• 6