Page 84 - classs 6 a_Neat

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8. Neeta bought curtain material for her house. She bought 7 m for the living room, 5 m for the study
1 2 4 6 Decimal
and 10 m for the bedrooms. How much curtain cloth did she buy in all?
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9. Mukul returns from school at 2 pm. He goes to bed at 10 pm. He has 8 hours to spend out of which 1 DECIMAL FRACTIONS The fractions in which the denominators are 10, 100, 1000, etc., are known as deci-
1 1 2 mal jractions.
hours are spent playing outdoors, 3 hours studying and 1 2 hours on the computer. The remaining time
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he spends with his parents. How much time does he spend with his parents? 3 5 48
EXAMPLE·L. , , , are all decimal fractions .
10 100 1000
2 1 1
10. Rohit spends 3 rd of his salary on rations, 5 th of it on transport and th of it on rent. What part of his We know that:
salary does he spend in all? What part of his salary is left as savings? 10 1 , 2 ,...... 9 represent one-tenth, two-tenths, three-tenths, . . . . . . ,
10 10 10
11. Find the difference between the greatest and the smallest fractions from the following. nine-tenths respectively.
3 4 19 18
3 5 ,2 7 , 6 , 8 We write them as:
1 2 3 9
2 1 2 = 1 = 2 = 3.......... = 9.
10
10
10
12. Atul jogged 5 of 2 of 3 of 9 km. in the morning. How many metres did he jog? Here the dot (.) is called the decimal point. 10
7 We read them as:
13. Shade of the given figure. point one, point two, point three, ...... , point nine respectively. Note that.l = 0.1, .3 = 0.3, .9 = 0.9, ... .
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DECIMAL FRACTIONS WITH 100 AS DENOMINATOR (HUNDREDTHS) We know that:

1 2 3 9 10 11 99
100 , 100 , 100 .......... 100 , 100 , 100 ..... 100 represent.

one-hundredth, two-hundredths, three-hundredths, . . . . . . , nine-hundredths, ten-hundredths, eleven-hundredths,
. . . . . . , ninety-nine-hundredths respectively.
We write them as:
1 2 3 9 10 11 99
100 = 0.1, 100 =,0.2, 100 = 0.3,.......... 100 = .09, 100 = .10, 100 =.11.... 100 =.99
We read them as:
point zero one, point zero two, point zero three, . . . . . . ,
point zero nine, point one zero, point one . . . . . . ,
point nine nine respectively. Note that .01 = 0.01, .99 = 0.99, ....

DECIMAL FRACTIONS WITH 1000 AS DENOMINATOR (THOUSANDTHS)
We know that:
1 2 3 9 10 11 99 100 999 represent.
1000 , 1000 , 1000 .......... 1000 , 1000 , 1000 ..... 1000 , 1000 ,....... 1000

one-thousandth, two-thousandths, . . . . . . , nine-thousandths, ten-thousandths, eleventhousandths,
. . . . . . , ninety-nine-thousandths, one hundred-thousandths, one hundred one-thousandths, . . . . . . nine hundred
ninety-nine-thousandths respectively.
We write them as: 1 2 3 9 10
1000 = .001, 1000 =.002, 1000 = 0.3,.......... 1000 = .009, 100 = .010,
11 99 100 999

1000 = .011, 1000 =.099, 1000 = .101,........ 1000 = .999.