Mathematics Quiz

Select all the equations where x = 5 is a solution.

• 10x = 5

• 2 = 7 - x

• 1 + x = 6

• x - 4 = 9

Which equation matches the hanger diagram?

• x*x*x= 1*1*1*1

• 3x = 4

• x + 1 = 4

Select all the expressions that represent the total area of the rectangle.

• 3c

• 30

• 21

• 25

• 28

How many sixth graders are there if the school has 28 students?

• 12

• 10

• 8

• 6

If the school has x students, write an expression for the number of sixth graders in terms of x.

How many students are in the school if 63 of them are sixth graders?

• 147

• 126

• 105

• 84

Write an equation that shows the relationship 40% of 120 is a.

• 0.4 times 120 = a

• 0.4 times a = 120

• 40 times 120 = a

• 120 times a = 0.4

Write an equation that shows the relationship 55% of b is 30.

• 0.55 times b = 30

• 0.55 times 30 = b

• b times 30 = 0.55

• 55 times b = 30

45% of c is 72. Find the value of c.

• 160

• 72

• 100

• 120