MCQ Questions

Question No. 1

List ten elements of each of these sets of numbers:

Answer :

a) ℕ

b) ℤ

c) ℚ

d) ℝ

Question No. 2

State whether the following is true or false:

Answer :

a) 4 ∈ ℕ

b) √3 ∈ ℚ

c) 5 ∈ ℤ

d) π ∈ ℤ

e) 3/5 ∈ ℚ

f) –1/2 ∈ ℤ

Question No. 3

Given the set {–9, –4.7, –√–3, –2/5, 0, 7/3, 3.666, 9}, list the members that belong to these sets:

Answer :

a) whole numbers

b) natural numbers

c) rational numbers

d) irrational numbers

e) integers

f) negative integers

Question No. 4

Convert these fractions to decimal numbers.

Answer :

a) 2/5

b) 5/12

c) 2/7

d) 4/9

e) 1 3/5

f) 3 21/100

Question No. 5

Convert these decimal numbers to fractions.

Answer :

a) 0.4

b) 0.52

c) 0.37

d) 3.21

e) 0.009

f) 3.06

Question No. 6

Write each recurring decimal in the form a/b; a, b ∈ ℤ.

Answer :

a) 0.121212…

b) 0.55555…

c) 5.656565…

d) 0.3 …

e) 2.18 …

f) 1.123123…

Question No. 7

Find the following roots by trial and improvement.

Answer :

a) √50

b) √74

c) √18

d) ³√49

Question No. 8

Construct each of the following irrational numbers on a number line.

Answer :

a) √45

b) √13

c) √136

Question No. 9

Adamma did research for a Mathematics project. She measured the circumference and diameter of various circular objects. The following table shows her results. One of the items was measured very inaccurately. From the table below, which item was measured the most inaccurately? Explain why you chose your answer.

Answer :

Chapter

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