Free Printable mathematics test on unit 1 for grade 8

1.

$If\ a=3,\ b=5\ and\ c=10\ then\ what\ is\ the\ value\ of\ c\left(a+b\right)^3?$

a)

640

b)

25100

c)

5120

d)

64000

2.

The value of √128/√2 + ∛54/∛(-2)

a)

3

b)

5

c)

11

d)

-11

3.

If $\left(6.2\right)^3$ =238.034, then what is the cube root of the number 238034 is equal to

a)

6.2

b)

0.62

c)

62

d)

0.062

4.

Which of the following is NOT perfect cube

a)

125

b)

27

c)

36

d)

216

5.

The volume of cube is 216 cube unit what is the total surface area of cube in sq unit

a)

36

b)

216

c)

256

d)

144

6.

$if\ \left(3.012\right)^3$ =27.28, then the cube of 30.12 is

a)

2728.4

b)

27280

c)

27208

d)

2728

7.

What is the simplified form of 3√8÷2√72 ?

a)

$\frac{3}{2}$

b)

$\frac{6}{5}$

c)

$\frac{1}{3}$

d)

$\frac{1}{2}$

8.

The length (L) of a rectangle is 4cm longer than the width (W). The perimeter of the rectangle is 80cm. Which of the following pairs gives the length and width of this rectangle?

a)

L= 20cm and W= 16cm

b)

A. L=22cm and W=18cm

c)

A. L=19cm and W=15cm

d)

A. L=21cm and W= 17cm

9.

Which of the following is TRUE?

a)

36 is a perfect cube number

b)

125 is a perfect square number

c)

64 is both a perfect square and cube number

d)

A cube root of a number is one of its two equal factors

10.

The simplification of ∛3 (∛9 -∛72) is

a)

3

b)

-9

c)

-3

d)

6

mathematics test on unit 1 for grade 8

Total questions: 10

Worksheet time: 19mins

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