7a integer Quiz Review

7a Integer Quiz Review

Ms. Labita

​Integers/Absolute Value

• ​Whole Numbers and their opposites (positive and negative)

• ​Zero is an integer

• ​Absolute value: The distance a number is from zero

• ​The absolute value of a number is always ______________.

• ​Additive Inverse: a number that you add to a given number to get a sum of 0.

Open Ended

Give an example of an integer:

Multiple Choice

|-100|=

• 100

• -100

• 0

Multiple Choice

-|-50|=

• 50

• -50

Multiple Choice

$$\left|-6\right|-\left|-2\right|=$$  

• 8

• 4

• -4

• -8

Open Ended

Write an integer that represents a withdrawal of $125

Open Ended

Write an integer the represents 200 feet above sea level

​Adding and Subtracting Integers

​ADDING:

​1) Same sign, ADD the numbers, KEEP the sign

​2) Different signs, SUBTRACT the numbers keep the sign of the BIGGER number

​

​SUBTRACTING:

​1) KEEP, CHANGE, CHANGE

​2) Apply addition rules

Multiple Choice

-6+(-17)=

• -11

• -23

• 23

• 11

Multiple Choice

-9-(-4)=

• -5

• 5

• -13

• 13

Multiple Choice

-15+20

• -5

• 5

• -35

Multiple Choice

7+(-11)=

• -4

• 4

• 18

• -18

Multiple Choice

10-14

• -24

• 24

• 4

• -4

​Properties of Adding Integers:

​1) Commutative Property

​

​2) Associative Property

​

​3) Additive Identity

​

​4) Additive Inverse

Multiple Choice

Which choice demonstrates the commutative property of addition?

• $$\left(-5\right)\left(3\right)=\left(3\right)\left(-5\right)$$  

• $$\left(-1+5\right)+4=-1+\left(5+4\right)$$  

• $$\left(-4\right)+\left(-6\right)=\left(-6\right)+\left(-4\right)$$  

• $$-5+0=-5$$  

Multiple Choice

Which property is being illustrated?

$$-100+0=-100$$  

• Additive Identity

• Additive inverse

• Commutative Property

• Associative property

​Multiplying and Dividing Integers

​

1) When the signs are the same, the product/quotient is ____________.

​

​2) When the signs are different, the product/quotient is _____________.

​

​

Multiple Choice

(-6)(5)=

• -30

• 30

Multiple Choice

$$\frac{-60}{-10}=$$  

• -6

• 6

• 600

Multiple Choice

$$\left(42\right)\div\left(-6\right)=$$  

• 7

• -7

Multiple Choice

$$0\div\left(-6\right)=$$  

• 0

• undefined

• -6

• 6

Multiple Choice

$$\frac{-8}{0}=$$  

• -8

• 1

• 0

• undefined

​Integers and Exponents

​​

A negative number with an even exponent is ____________.

​

​

​ A negative number with an odd exponent is ___________.

Multiple Choice

$$\left(-1\right)^6=$$  

• 6

• -6

• 1

• -1

Multiple Choice

$$\left(-1\right)^9=$$  

• -1

• 1

• 9

• -9

Multiple Choice

$$\left(-4\right)^2=$$  

• -16

• 8

• -8

• 16

Multiple Choice

$$-5^2=$$  

• 25

• -25

• 10

• -10

Multiple Choice

$$100^{0\ }=$$  

• 100

• 0

• 1

Multiple Choice

$$15^1=$$  

• 1

• 0

• 15

• -15

​Word Problems

​1) Find the key words and determine what operation to do.

​2) Write an expression to represent the situation.

​3) Evaluate

​4) State your answer in words (don't forget units!)

Multiple Choice

 Mike deposited $200 into his account. He then wrote checks for $20 and $30. Then he deposited $40 dollars more. Which of the following represents the changes in the value of Mike’s account?

• 200 – 20 – 30 + 40

• 200 – 20 + 30 + 40

• 200 + 20 – 30 – 40

• 200 + 20 – 30 + 40 

Open Ended

In an experiment, the temperature fell 48°F in 8 minutes. If the temperature fell at the same rate every minute, how many degrees did it change each minute?

Multiple Choice

The top of a sailboat is 20 feet above sea level and the bottom of the sailboat is 5 feet below sea level. Which expression correctly represents the difference in elevations?

• 20-5

• 5-20

• 20-(-5)

Multiple Choice

In 4 plays, the NY Giants lose 4 yards, gain 10 yards, lose 2 yards and finally gain 8 yards. How far was the ball moved overall?

• 4-yard gain

• 4-yard loss

• 12-yard loss

• 12-yard gain

​MIXED PRACTICE

​MIXED PRACTICE