Math Review

7th Math

100

Convert 3/4 to a decimal.

0.75

200

The ratio of boys to girls in a class is 3:4. If there are 12 boys, how many girls are there?

16 girls

300

A rectangle has a length of 12 cm and width of 5 cm.
What is its area?

Area is 60cm

400

What is the product of −6 x -4?

24

500

Evaluate the expression when x=3

5x+7= ?

22

8th Math

100

(2³)2

64

200

3x−7=2x+5

x = 12

300

3²⋅3⁴

3⁶ OR 729

400

Write 4,500,000 in scientific notation.

4.5 x 10 ⁶

500

What is the mean, median, and mode of the data set:
5,7,7,8,10,12,7

Mean: 8

Median: 7

Mode: 7

Vocabulary

100

What is the mean of a data set?

A) The middle number

B) The most frequent number

C) The average

D) The difference between highest and lowest

200

Which word is the meaning to quotient?

A) Product

B) Remainder

C) Answer to a division problem

D) Sum

300

Which word is similar in meaning to equivalent?

A) Opposite

B) Greater than

C) Equal in value

D) Close but not equal

400

A variable is a letter or symbol used to represent an unknown number.

True or False

True

500

What does probability mean?

A) The number of trials

B) The result of a division problem

C) How likely something is to happen

D) The number of outcomes in a list

Shapes

100

This shape has 5 sides

Pentagon

200

This shape has 4 parallel lines

parallelogram

300

This shape has 8 sides 

Octogon

400

This shape has 0 sides

Circle

500

This shape has a circle base with two points that met

Cone