Lesson Integer Operations

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​integer with the
greater absolute value

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​Counters

Number Lines

​2 + (-5) = (-3)

Multiple Choice

Adding integers with the same sign:

• Subtract

• Add and keep the sign.

• Add and that is it.

• What is adding integers?

Multiple Choice

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!

Multiple Choice

Which expression matches the model?

• $$-5+3$$  

• $$5+\left(-3\right)$$  

• $$0+2$$  

• $$5+3$$  

Multiple Choice

What integer addition equation is being modeled?

• -5 + -3 = -2

• -5 + 2 = -3

• -5 + 3 = -2

• 5 + 3 = 8

Multiple Choice

$$-4+\left(-3\right)$$  

• $$7$$  

• $$1$$  

• $$-1$$  

• $$-7$$  

Multiple Choice

$$-5+9$$  

• $$-4$$  

• $$4$$  

• $$-14$$  

• $$14$$  

Multiple Choice

$$2+\left(-8\right)$$  

• $$6$$  

• $$10$$  

• $$-16$$  

• $$-6$$  

Multiple Choice

Rewrite the expression

7 - (-6)

• 7 - 6

• 7 + (-6)

• 7 + 6

• -7 + (-6)

Multiple Choice

Which addition expression is equivalent to 7 - (-3)?

• -3 + 7
• -7 + 3
• 7 + 3
• 3 + (-7)

Multiple Choice

How would the following look like as an addition problem?

$$-9-\left(-5\right)$$  

• -9 + (-5)

• 9 + 5

• -9 + 5

• 9 + (-5)

Multiple Choice

$$5-\left(-2\right)$$  

• 7

• 3

• -3

• -7

Multiple Choice

$$-3-2$$  

• -1

• -5

• 1

• 6

Multiple Choice

$$-7-\left(-7\right)$$  

• 14

• 0

• -14

• 1

Multiple Choice

$$3-9$$  

• 6

• 12

• -12

• -6

Multiple Choice

When multiplying or dividing a NEGATIVE and NEGATIVE number your result will be...

• POSITIVE
• NEGATIVE
• DEPENDS ON WHICH NUMBER IS LARGER.

Multiple Choice

When multiplying or dividing a NEGATIVE and POSITIVE number your result will be...

• Positive
• Negative
• Depends on which is bigger.

Multiple Choice

(-25) ÷ (-5)

• 5
• -5
• -20
• -30

Multiple Choice

-5 x -8

• -40
• -13
• -45
• 40

Multiple Choice

64 ÷ (-8)

• 8
• -8
• -9
• -7

Multiple Choice

-6 x 5

• 30
• -30

Multiple Choice

-18 ÷ (-2)

• 9
• -9
• -20
• 10

Multiple Choice

10 x 8 =

• 80
• -80
• 18
• -18

​

Fill in the Blanks

The temperature Thursday morning was 78 degrees. If the temperature rose 13 degrees by noon, what was the new temperature?

Multiple Choice

Netflix deducts $17 a month from Jeremiah's bank account. After 1 year, how much money will be deducted from Jeremiah's bank account?

• -$17

• -$204

• -$170

Fill in the Blanks

Kim had -$124 in her bank account. She deposits $150 for her birthday. How much money does kim have in her bank account?

Multiple Choice

Kaylah is charged $150 in five months for her gym membership. How much was she charged per month by the gym?

• -$12.50

• -$15

• -$30

Multiple Choice

The first play of a football game resulted in a loss of 12 yards.  Then a penalty resulted in another loss of 5 yards.  What is the total loss or gain?

• a gain of 7 yards
• a loss of 7 yards
• a gain of 17 yards 
• a loss of 17 yards

Multiple Choice

A scuba diver dives at a rate of 20 feet per minute. What is the depth of the diver after 4 minutes?

• 80

• 24

• 20

• -80

Fill in the Blanks

Tim had $362 in his bank account. He spent $54 then made a deposit of $82. How much money does Tim have in his bank account?

Multiple Choice

Joe is playing a game with a regular die. If the number that turns up is even, he will gain 5 times the number. If it is odd, he will lose 10 times the number. Joe rolled a 3. Express the results as an integer.

• -30

• 30

• 15

• -15