Integer Addition Sample Problems

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Here are some tips for Integer Addition, which aligns with California state standards:

Integer Addition

This topic covers the addition of positive and negative numbers.

A number line helps you see how integers are added.
On a number line,
• when you add positive integers, move to the right.
• when you add negative integers, move to the left.

Positive + Positive

This is covered in the Fast Addition topic.

Positive + Negative

3 + ^-5

a. Start at ⁺3 on the number line

b. From ⁺3, move 5 to the left to add ^-5
You end up at ^-2

3 + ^-5 = ^-2

Negative + Positive

^-3 + 4

a. Start at ^-3 on the number line

b. From ^-3, move 4 to the right to add ⁺4
You end up at ⁺1

^-3 + 4 = 1

Negative + Negative

^-1 + ^-3

a. Start at ^-1 on the number line

b. From ^-1, move 3 to the left to add ^-3
You end up at ^-4

^-1 + ^-3 = ^-4

a.	Start at ⁺3 on the number line
b.	From ⁺3, move 5 to the left to add ^-5
	You end up at ^-2

a.	Start at ^-3 on the number line
b.	From ^-3, move 4 to the right to add ⁺4
	You end up at ⁺1

a.	Start at ^-1 on the number line
b.	From ^-1, move 3 to the left to add ^-3
	You end up at ^-4