9/8 Math 7 Lab: Additive Inverse & Operations with Integers

Additive Inverses

Multiple Choice

The additive inverse of 9 is?

• 1

• -9

• -10

Multiple Choice

( ) + 16=0

• -16

• 0

• 16

Multiple Choice

What is the OPPOSITE of -5?

• -5
• 5
• -0

Multiple Choice

33 + (-33)=

• 33

• 0

• 66

When subtracting integers, we move to the left on the number line.

Subtraction

When adding integers, we move to the right on the number line​.

Addition

​Addition and Subtraction with Integers

Integer chips can help find zero pairs

1 + (- 1) = 0​

​Zero Pairs & Integer Chips

Multiple Choice

What is the answer to the problem in the picture?

(Blue = positive, red = negative)

• 4

• -6

• 2

• -2

Multiple Choice

What expression correctly represents the picture?

• -5 - 2

• 5 + - 2

• -5 + 2

• 5 + 2

- + becomes -

​

​

- - becomes +​

​

+ - becomes -

​

​

+ + becomes +​

​Signs when Adding/Subtracting Integers

Multiple Choice

When adding positive numbers on a number line, you move to the ____________.

• Right
• Left

Multiple Choice

-4 + (-3) = ?

• 7
• -1
• -7

Multiple Choice

$$-9+\left(-5\right)$$  

• $$-14$$  

• $$14$$  

• $$-4$$  

Multiple Choice

When you are subtracting using a number line, you want to jump to the.......

• right

• left

Multiple Choice

-2 + (-4) 

• 2

• -4

• -6

Multiple Choice

Is the product
–8 • (–3) positive or negative?

• negative
• positive
• both
• neither