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Types of. Number -sagar mandhare mo 8668524342

Total questions: 14

Worksheet time: 24mins

Name
Class
Date
1.
The numbers 0, 1, 2, 3, ... are called
a)
whole numbers
b)
integers
c)
rational numbers
d)
natural numbers
2.
-10 is a whole number
a)
True
b)
False
3.
Classify the Number: -23
a)
Rational
b)
Real, rational, integer
c)
integer
d)
Real, irrational, whole
4.

What do all rational numbers have in common?

a)

They can be expressed as fractions

b)

They have positive values

c)

They can be expressed as terminating decimals

d)

They cannot be added, subtracted, multiplied or divided by irrational numbers

5.

Which of the following is true?

a)

All integers are whole numbers

b)

All rational numbers are integers

c)

All whole numbers are rational

d)

All rational numbers are whole numbers

6.
Simplify √-4
a)
2i
b)
-2i
c)
2
d)
4i
7.

Simplify √-48

a)

4i√3

b)

-4i√3

c)

i√48

d)

-48i

8.

List the first 5 multiples of 9

a)

18, 27, 36, 45, 54

b)

5, 10, 15, 20, 25

c)

1, 3, 9

d)

9, 18, 27, 36, 45

9.

List the factors of 40.

a)

40, 80, 120, 160, 200

b)

1, 2, 4, 5, 8, 10, 20, 40

c)

2, 4, 5, 8, 10, 20

d)

1, 2, 3, 4, 5, 8, 10, 20

10.

Select the prime numbers from the following list.

a)

1

b)

5

c)

9

d)

11

e)

15

11.

Write 90 as the product of prime factors in index form.

a)

1 x 2 x 3 x 5

b)

2 x 3 x 5

c)

2 x 45

d)

2 x 32 x 5

12.

What is the LCM of 10 and 15

a)

5

b)

1

c)

60

d)

30

13.

What is the HCF and LCM of 200 and 240

a)

HCF = 11 and LCM = 21

b)

HCF = 40 and LCM = 1200

c)

HCF = 20 and LCM 2400

d)

HCF = 10 and LCM 4800

14.

What do all rational numbers have in common?

a)

They can be expressed as fractions

b)

They have positive values

c)

They can be expressed as terminating decimals

d)

They cannot be added, subtracted, multiplied or divided by irrational numbers