Grade 7 Mathematics Quiz

How many subsets does a set have with 8 elements?

• 16

• 32

• 63

• 256

The ratio of boys to girls in Mr. Johnson’s after-school club is the same as the ratio of boys to girls in Ms. Greene’s after-school club. There are 4 boys and 12 girls in Mr. Johnson’s club. There are 6 boys in Ms. Greene’s club. How many girls are in Ms. Greene’s club?

• 2

• 12

• 14

• 18

Jhane constructs a scale model of a building with a rectangular base. Her model is 2 inches in length and 1 inch in width. The scale on the model is 1 inch = 47 feet. What is the actual area, in square feet, of the base of the building?

• 141

• 282

• 2 209

• 4 418

Which expression is equivalent to  7a -8 -12a + 4 ?

• -9a

• 31a

• -5a – 4

• 19a -4

What value will make the equation true?

• 3.6

• 0.6

• -0.6

• -3.6

Use the order of operations to simplify the expression (9 - 2² ) (36  9)+ 8.

• 25

• 26

• 27

• 28

There are 126 students in 4 seventh grade classes. Three classes each have 31 students. How many students are in the fourth class?

• 31

• 32

• 33

Which values of x satisfy |2x + 1| = |2x – 9|?

• x=2

• x=1

• x=3

• x=4

Sandra is 18 years older than Paulo. In 13 years, Sandra will be as twice as old as Paulo will be then. How old is Sandra now?

• 23 years old

• 21 years old

• 25 years old

• 22 years old