Page 39 - Maths Skills - 7

Fractions and Decimals 37

Exercise 2.6

1. Round off correct up to two places of decimal.

(i) 2.663 (ii) 18.9983 (iii) 128.162 (iv) 275.112
(v) 386.1126 (vi) 66.126 (vii) 14.1369 (viii) 3.5316
2. Round off correct up to one place of decimal.

(i) 57.667 (ii) 175.023 (iii) 66.778 (iv) 225.358
(v) 667.225 (vi) 39.675 (vii) 127.639 (viii) 12.015

3. Round off to nearest ones.
(i) 39.5346 (ii) 667.28 (iii) 38.75 (iv) 25.78
(v) 166.266 (vi) 766.25 (vii) 71.716 (viii) 35.678

ASSESSMENT TIME

5. 632.153 × 100 =
COMPETENCY BASED QUESTIONS
(i) 6321.53 (ii) 63215.3
A. Multiple-Choice Questions
(iii) 632153.0 (iv) 6.32153
8
1. of 99 will be
11 6. 50% of 630 is

(i) 91 (ii) 63 (i) 126 (ii) 3150
(iii) 72 (iv) 88 (iii) 315 (iv) none of these
75
2. is the same as 7. 336.2 ÷ 100
13
10 2 (i) 3.362 (ii) 3362.0
(i) 5 (ii) 6 (iii) 0.3362 (iv) 0.03362
13 13
5 7 8. 725% =
(iii) 7 (iv) 3
13 13 (i) 0.725 (ii) 7.25
1 1
3. If we add 1 and 1 , we get (iii) 7250 (iv) 0.0725
2 2

(i) 2 (ii) 3 B. Fill in the Blanks
(iii) 4 (iv) 5 1. 8 ÷ 1 = ________________.
13
4. 7.98 × 1000 = 2. 7.29 × 10 = ________________

(i) 0.00798 (ii) 0.798 3. 9.999 ÷ 100 = ________________
(iii) 798.000 (iv) 7980.00
4. The fractions in which the denominators are 10,
100, 1000 etc. are called ___________.