Free Printable Grade 9 Math week quizz

1.

billy has saved 2745 pennies. How much money is that?

a)

$2745

b)

$274.50

c)

$27.45

d)

$2.75

2.

Simplify the Expression
4² + 40 ÷ 8

a)

7

b)

21

c)

6

d)

81

3.

The objective when solving an equation is to....

a)

isolate the variable.

b)

check the solution.

c)

guess and check.

d)

Combine Like Terms.

4.

In a group of 20 children, 11 have a scooter and 13 have a pair of roller skates. 4 children have neither. Use a Venn diagram to find how many children have both.

a)

x = 16

b)

x = 24

c)

x = 8

5.

Is 5 a solution for 3x + 4 = 19

a)

yes

b)

no

6.

Write this recurring decimal as fraction in the simplest form:

0.8̇

a)

$\frac{8}{9}$

b)

$\frac{8}{90}$

c)

$\frac{8}{99}$

7.

Use the quadratic formula to solve the equation:

x² + 3x + 2 = 0

a)

1, 2

b)

1, -2

c)

-1, -2

8.

On the following diagram, shade these sets: (A ∩ B)′

a)

b)

c)

9.

What is the slope in the picture?

a)

Positive

b)

Negative

c)

Zero

d)

Undefined

10.

What is the range in gas mileage for cars?

a)

2

b)

3

c)

4

d)

6

11.

a)

a⁷

b)

a¹

c)

1/a¹²

d)

a¹²

12.

What is the slope in the equation y=2x + 3?

a)

2

b)

3

c)

5

d)

Cannot be Determined

13.

The mass of a sack of vegetables is given as 5.4 kg. The lower and upper bounds are

a)

5.55 and 5.65

b)

5.35 and 5.45

c)

5.5 and 5.55

d)

5.3 and 5.5

14.

Make x the subject of the formula:

a)

$x\ =\ \sqrt{y-a}$

b)

$x\ =\ \sqrt{y}-a$

c)

$x\ =\ \sqrt{y+a}$

d)

$x\ =\ \sqrt{y}+a$

15.

Which of the following will always result in an answer greater than 1?

a)

multiplying a whole number by a negative fraction that is less than -1

b)

multiplying two positive fractions that are both less than 1

c)

multiplying two negative fractions that are both greater than -1

d)

multiplying two negative fractions that are both less than -1

16.

What shape is this?

a)

Rectangle

b)

Triangle

c)

hexagon

d)

Circle

17.

Solve for the value of x: $\sqrt{x+3}=7$

(a)

18.

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

a)

3/10

b)

30%

c)

1/9

d)

1/3

19.

Factor by grouping:
20x² - 16x - 25x +20

a)

(20x - 5)(x - 4)

b)

(4x + 5)(5x + 4)

c)

(5x - 4)(4x - 5)

d)

(5x + 4)(4x - 5)

20.

The square of x² - 2y²is ______

a)

x⁴ - 4x²y²+ 4y⁴

b)

x⁴ + 4x²y²+ 4y⁴

c)

x⁴ - 4x²y²- 4y⁴

d)

None of the above

21.

Are the triangles congruent?

a)

Yes, by AAS≅

b)

Yes, by ASA≅

c)

Yes, by AA≅

d)

Yes, by SAS≅

e)

Not enough information

22.

There are 25 questions in a quiz. Each correct answer is given 5 marks while 2 marks are deducted for each wrong answer. Peter answered all the questions and obtained 21 correct answers. How many marks did he score?

a)

94

b)

95

c)

96

d)

97

23.

The initial temperature of a solution was 16^oC. The temperature dropped 3^oC every minute. What was the temperature of the water after 15 minutes in ^oC?

a)

-28

b)

-29

c)

-30

24.

What is the only number that has NO reciprocal?

a)

0

b)

-15

c)

1

d)

999

25.

Which of the angle pairs below is a pair of alternate interior angles?

a)

$\angle7\$ and $\angle5$

b)

$\angle3\$ and $\angle7$

c)

$\angle4$ and $\angle8$

d)

$\angle1\$ and $\angle3$

Grade 9 Math week quizz

Total questions: 25

Worksheet time: 13mins

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