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Worksheets

mental maths

Total questions: 15

Worksheet time: 6mins

Name
Class
Date
1.

 (33×34)÷35\left(3^3\times3^4\right)\div3^5  =

a)

 3123^{12}  

b)

 333^3  

c)

6

d)

9

2.

A dice is thrown. The probability of getting 1 and 5 is:


पासे को उछालने पर 1 या 5 आने की प्रायिकता ज्ञात करो

a)

1/6

b)

2/3

c)

1/3

d)

5/6

3.
What is 25% of 200?
a)
25
b)
50
c)
75
d)
100
4.

How many sides does an octagon have?

a)

6

b)

7

c)

8

d)

9

5.
Write quarter to nine as a digital time.
a)
9:15
b)
9:45
c)
8:15
d)
8:45
6.
How many lots of nine are there in eighty one?
a)
18
b)
9
c)
6
d)
3
7.

There are how many Rational no.between 1 & 0

a)

4

b)

5

c)

Infinite

d)

7

8.

In a century how many months are there?

a)

12

b)

120

c)

1200

d)

12000

9.
How many sides does an octagon have?
a)
6
b)
7
c)
8
d)
9
10.

The number of 3-digit numbers divisible by 6, is ………

a)

149

b)

150

c)

151

d)

152

11.

Find the area of the quadrilateral

a)

216 sq cm

b)

64 sq cm

c)

312 sq cm

d)

156 sq cm

12.
The side of a cube whose surface area is 600 cm2 is____
a)
10 cm
b)
10 cm2
c)
60 cm
d)
6 cm
13.
Who is known as the "Father of Geometry"?
a)
Pythagoras
b)
Archimedes
c)
Euclid
d)
Galileo
14.

was a French mathematician and philosopher, and one of the key figures in the Scientific Revolution. He is credited with the first use of superscripts for powers or exponents, and the cartesian coordinate system is named after him.

a)

René Descartes (1596 – 1650)

b)

Carl Friedrich Gauss (1777 – 1855)

c)

Augustin-Louis Cauchy (1789 – 1857)

d)

Joseph-Louis Lagrange (1736 – 1813)

15.

Was a Greek philosopher and mathematician. He is best known for proving Pythagoras’ Theorem, but made many other mathematical and scientific discoveries.

a)

Thales of Miletus (c. 624 – 546 BCE)

b)

Eratosthenes of Cyrene (c. 276 – 195 BCE)

c)

Pythagoras of Samos (c. 570 – 495 BCE)

d)

Heron of Alexandria (c. 10 – 70 CE)