Math 7 Review

Percent

100

Write 47/50 as a percent.

94%

200

What percent of 95 is 76?

80%

300

What number is 50% of 22?

11

400

31.5 is what percent of 75?

42%

500

What is the sale price of $36 item after a 50% discount?

$18

Probability

100

The probability of an event is 15%. Describe the likelihood of the event.

Unlikely

200

The probability of an event is 84%. Describe the likelihood of the event.

Likely

300

There are 4 green marbles and 7 silver marbles in a bag. You randomly choose one of the marbles. What is the probability of choosing a green marble?

36%

400

You randomly draw a marble from a bag, record its color, and then replace it. You draw a blue marble 3 out of 50 times. What is the experimental probability that the next marble will be blue?

6%

3/50

500

What is the difference between theoretical and experimental probability?

Experimental you actually complete the task. 

Theoretical is how many possible outcomes. 

Expressions

100

What is an example of a variable?

Any letter

200

What is an example of a constant?

Just a number

300

What is an example of a coefficient?

Number with a varible

400

Simplify the expression: 

 -3.4z+1.1-2.3z-8.2

-5.7z-7.1

500

Factor 34x + 17y using GCF.

17(2x+y)

Inequalities

100

What is the sign for greater than?

>

200

What is the sign for less than?

<

300

What is the sign for less than or equal to?

<

400

What is the sign for greater than or equal to?

>

500

When graphing inequalities, when do you use a closed circle?

Greater than or equal to

less than or equal to

Rational Numbers

100

Find the sum

-4+ (-9)

-13

200

Find the sum

-8.18 + (-2.52)

10.7

300

-5.4+9.5

4.1

400

Find the quotient

-45 / (-9)

5

500

Find the product

-2/3(-3/4)

1/2