Free Printable Mental Maths

1.

Guess the square root of 307

a)

17.7

b)

17.3

c)

17. 5

d)

18.1

e)

18.4

2.

Express 108/240 in decimal form.

a)

0.45

b)

0.55

c)

0.42

d)

0.35

e)

0.23

3.

In Rational Numbers both Numerator and Denominator are ____________

a)

Integers

b)

Whole Numbers

c)

Natural Numbers

d)

Composite Numbers

4.

If the price of a 2800 rupees canoe is reduced by 25%, what is the final price of the canoe?

a)

2300

b)

2100

c)

2200

d)

2400

5.

Give the properties of a rhombus

a)

One pair of sides are equal.

b)

The opposite sides are parallel.

c)

The adjacent angles are equal.

d)

Diagonals do not bisect each other at right angles.

e)

The sum of two adjacent angles is equal to 180 degrees.

6.

{ $3x-12=-30$ }Your Answer is :- [choose 1 or more 1 options

a)

Prime

b)

Composite

c)

Divisible by 2

d)

Divisible by 7

e)

Divisible by 3

7.

Which is the smallest number?

a)

01

b)

11

c)

22

d)

10

e)

13

8.

The COVID-19 cases' weekly average dropped from approximately 2,05,708 to 1,45,556 in a week. What is the drop approx?

a)

65 thousand

b)

60 thousand

c)

61 thousand

d)

62 thousand

e)

63 thousand

9.

Find the missing number in the following pattern

2, 5, 10, _____, 26, 37

a)

17

b)

18

c)

19

d)

15

10.

If you buy French fries that cost 70.2 rupees with a 85 rupees, How much money will you get back?

a)

15.2

b)

14.8

c)

14.6

d)

14.4

e)

15

11.

There are 7 boys and 14 girls in the classroom. What is the probability of randomly choosing a girl?

a)

3/7

b)

6/10

c)

3/5

d)

2/3

12.

You go to a café and buy 3 coffees at 4.50 rupees each. You give the cashier a 20 rupees note. How much change should you get back?

a)

6.5

b)

7.5

c)

5.5

d)

8.5

e)

3.5

13.

$a^2\ =\ 576$ Find the value of a in -

a)

27

b)

25

c)

23

d)

24

e)

26

14.

What do three-tenths look like?

a)

0.03

b)

0.003

c)

3.0

d)

0.3

15.

A little boy goes shopping and purchases 120 tomatoes. On the way home, all but 75% get mushed and ruined. How many tomatoes are left in a good condition?

a)

65

b)

60

c)

40

d)

45

e)

30

16.

$\left(4^{0\ \ }+\ 4^{\left(-1\ \ \right)\ }\right)\times\ 2^2$ The answer to the equation is

a)

4

b)

3

c)

2

d)

5

e)

1

17.

11x + 33 = 154 {Write in Numerals. Ex - 12}

(a)

18.

The pie chart gives the marks scored in an exam by a student. If the total marks were 540. In which subject did the student score 105 marks?

a)

English

b)

Mathematics

c)

Science

d)

Social Studies

e)

Hindi

Mental Maths - Grade 8

Total questions: 18

Worksheet time: 6mins

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