Math Review

Absolute Value

100

Find the absolute value of:

|-10|

10

Absolute value is the distance from zero.

https://www.khanacademy.org/math/arithmetic/arith-review-negative-numbers/arith-review-abs-value/v/absolute-value-of-integers

200

What is greater:

|-6| or |3|

|-6|

The absolute value of a number is the number's distance from zero.

300

Place the following in order from smallest number, to biggest number:

|-20|, 18, |12|, |-14|, 8

8, |12|, |-14|, 18, |-20|

The absolute value of a number is the number's distance from zero.

https://www.khanacademy.org/math/arithmetic/arith-review-negative-numbers/arith-review-abs-value/v/absolute-value-of-integers

400

What is:

|-7| + |-2|

9

The absolute value of a number is the number's distance from zero.

500

2 x |-5| + |4| - 14

0

Remember to use your order of operations.

Exponents

100

When you see the following expression, what is the big number called and what is the little number on top of it called?

2⁴

Big number = base; little number = power

https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-exponents/v/introduction-to-exponents

200

How can you rewrite 9² in expanded form?

9 x 9

300

How can you rewrite the following in exponential form?

7 x 7 x 7 x 7 x 7 

7⁵

400

What is the value of:

8⁴

4096

https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-exponents/v/introduction-to-exponents

500

What is the value of:

2³ + 3² - 4²

1

https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-exponents/v/introduction-to-exponents

Order of Operations

100

Simplify the following expression:

62

https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

200

Simplify the following expression:

5

https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

300

3 + 4² * (3 + 2)

83

400

45

500

12

Multiplication

100

Solve: 62 x 27 = ?

1,674

200

Solve: 45 x 63 = ?

2,835

300

Solve: .44 x 62 = ?

27.28

400

1/4 x 2/3 = ?

1/6

500

Solve: 6,240 x 201 = ?

1,254,240

Word Problems

100

There are 360 minutes of monthly cell phone minutes for 4 people in a family. Can each person get the same number of minutes per month? If so, how many? 

Yes, each person gets 90 minutes.

Use 4 rule for divisibility. (look at the last 2 digits in the number (60), since 60 is divisible by 4, so is 360.

200

You are making identical gift bags using 12 candles and 24 bottles of lotion. What is the greatest number of gift bags you can make with no items left over?

GCF of 12 and 24 is 12. 

The greatest number of gift bags you can make with no items left over is 12 bags. 

300

A bag of dog food contains 42 cups. Your dog eats 2 1/3 cups of dog food each day. How many days does the bag of dog food last?

The bag of dog food lasts 12 days.

Remember (KCF) when dividing fractions.

400

Point A is located at (4, -6). Plot the point on a coordinate plane and tell which quadrant the point will be in.

Point A will be at Quadrant III.

500

In Lauren's desk drawer there are 14 yellow highlighters. There are 12 more pink highlighters than yellow highlighters, and there are 4 more blue highlighters than pink highlighters. How many highlighters are in Lauren's desk drawer in all?

There are 70 highlighters in all in Lauren's drawer.