MCQ Questions

Question No. 1

Write these numbers correct to the nearest whole number.

Answer :

a) 18.17

b) 91.26

c) 30.8

d) 0.27

e) 0.87

f) 3.58

g) 102.76

h) 286.1

i) 20.916

j) 311.91

Question No. 2

Write the following numbers, correct to the nearest ten.

Question No. 3

Write these numbers correct to the nearest unit.

Question No. 4

Write these numbers correct to the nearest hundred.

Question No. 5

Write these numbers correct to the nearest thousand.

Answer :

a) 1 999

b) 2 004

c) 1 849

d) 1 469

e) 5 814

f) 29 034

g) 31 480

h) 21 111

i) 54 671

Question No. 6

Write each of the following numbers correct to the required number of significant figures.

Answer :

a) to 1 s.f.: i) 4 521 ii) 16.5 iii) 0.43 iv) 0.0711 v) 0.0086

b) to 2 s.f.: i) 197.746 ii) 95.0745 iii) 369.047 iv) 0.0701 v) 0.0485

c) to 3 s.f.: i) 28.7046 ii) 37.074 iii) 12.074 iv) 0.04755 v) 0.00941

Question No. 7

Write each of the following numbers correct to the required number of decimal places.

Answer :

a) to 1 d.p.: i) 4 631 ii) 6.5 iii) 0.34 iv) 0.0801 v) 0.0078

b) to 2 d.p.: i) 56.384 ii) 66.518 iii) 0.7471 iv) 0.0802 v) 0.006775

Question No. 8

Correct each number to one significant figure, and then estimate the value of each product.

Answer :

a) 44 × 28

b) 47 × 62

c) 4.9 × 81

d) 1.8 × 720

e) 440 ⁄ 38

f) 930 ⁄ 43

g) 8.1 ⁄ 49

h) 29 ⁄ 0.72

Question No. 9

For each question decide by estimating which answer in the brackets in the right‑hand column is correct.

Answer :

a) 7.2 × 9.8 (52.16, 98.36, 70.56)

b) 0.21 × 93 (41.23, 19.53, 9.03)

c) 13.92 ÷ 5.8 (0.52, 4.2, 2.4)

d) 159.65 ÷ 515 (0.11, 3.61, 0.31)

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