Math Review 3/19

Order of Operations

100

9 + 2 x 7 

23

200

18 / 2 x 3

27

300

5³ + (3 x 1)

128

400

7⁴ x ( 81 x 0)

0

500

10 x (7+2) - 2²

86

Inequalities

100

True or False

-500>0

False

200

Complete this inequality with a symbol <,>, or =

-100        -50

<

300

Complete this inequality with a symbol <,>, or =

0       -2

>

400

Complete this inequality with a symbol <,>, or =

| -8 |                  8

=

500

Complete this inequality with a symbol <,>, or =

-|3+4|           -3

<

Fractions +, -, X, /

100

4/5 - 2/5

2/5

200

3/16 + 5/16

8/16 or 1/2

300

1/2 + 1/4

You can not do this without changing a denominator and using equivalent fractions.

3/4

400

4 x 3/4

3

500

1/2  /  1/6

6/2 or 3

Absolute value and ordering integers

100

What is the absolute value of 0?

0

200

Sort these integers from greatest to least:

-15, 9, 0, -1

9, 0, -1, -15

300

Sort these integers from least to greatest:

-6, 5, -7

-7, -6, 5

400

Which value is greatest?

|-34|, |19|, |-6|, |55|

|55|

500

Laura hiked a mountain ridge trail. She climbed a total of 125 ft in the first hour, descended 132 ft the second hour, and descended another 127 ft the third hour. Order the absolute values of her elevation changes from least to greatest.

125ft, 127 ft, 132 ft

Least common multiple (LCM)

100

What is the LCM of 3 and 6?

6

200

What is the least common multiple of 7 and 2?

14

300

What is the LCM of 4 and 22

44

400

What is the least common multiple of 2, 3, and 12

12

500

What is the LCM of 5, 6, and 15

30