Ch. 1-3 Review

Order of Operations

100

What does PEMDAS stand for? 

Parenthesis, Exponents, Multiply & Divide (left to right), Add and Subtract (left to right)

200

Simplify: 

36 div (-2) + 4 * 3=

-6

300

Simplify: 4a + 5(2c - a)=

-a + 10c

400

Simplify: 8 - 2(12 - 10)=

4

500

Simplify

{5+2(9-4)}/3

5

Rounding

100

Round 34 to the nearest tens place

30

200

Round 13.42 to the nearest tenth

13.4

300

Round 3.40563 to the nearest hundredth

3.41

400

Estimate 4.789 + 3.002 + 9.117

17

500

Estimate: 60.245 + 13.55 + 8.012 =

82

Equations and Inequalities

100

Evaluate: 8y - 3, for y=-2

-19

200

Solve the equation: 84 = -4t

t=-21

300

Solve the inequality: 

x - 9 <= 6

x<=15

400

Solve the inequality: 

n/-2 <= 7

n>= -14

500

Solve the inequality: 

x/11 <= -4

x<= -44

Mean, Median, and Mode

100

Find the mode: 52.2, 51.8, 58.4, 52.7, 52.2

52.2

200

Find the median: 52.2, 51.8, 58.4, 52.7, 52.2

52.2

300

Find the mean: 75.25, 77.75, 76.5, 70.25, 76.5

75.25

400

What is the median?

The middle point of a set of data

500

What is the mean and mode?

Mean is the average of a set of data. Mode is the number that repeats most often. 

Misc.

100

When graphing inequalities, which symbols are used for an open circle?

< and >

200

When graphing inequalities, which symbols are used for a closed circle?

<= and >=

300

What is the opposite of -|-5|?

5

400

What is the opposite of |-3|?

-3

500

What is Mrs. L's favorite color?

Blue