(i) Ankit is 160 cm tall. What is his height in meters.
(a) 0.16 meters
(b) 16.0 meters
(c) 1.6 meters
(d) 1 meter
Ans: (c)
we know that
1 meter = 100 cm
So, 160/100 = 1.6 meters
So, Ankit is 1.6 meters tall
(ii) Convert the following measurement into cm
3.44 m
(a) 3.44 cm
(b) 34.4 cm
(c) 344 cm
(d) 3440 cm
Ans: (c)
We know that
1 meter = 100 cm
1 cm = 1/100 m
Given That , we have to convert 3.44 m into cm
3.44 m = 3.44 × 100 cm
= 344 cm
So, Option C is correct
(iii) 20 km = _______ m
(a) 2000
(b) 10
(c) 20,000
(d) 100
Ans: (c)
20 km = 20 km = 20,000m
(iv) Convert 10060 meters into kilometers.
(a) 1.6 kms
(b) 1.06 kms
(c) 10.6 kms
(d) 10.06 kms
Ans: (d)
1000 m = 1 km
10060 metres = 10060/100km
= 10.06 Kms
(v) 10.5 litres is equal to how many milliliters
(a) 10500
(b) 10005
(c) 10050
(d) 15000
Ans: (a)
10.5 litres can be written as 10.5 × 1000 = 10500 ml.
Thus option A is correct.
(i) 2.7, 3.2, 3.7, 4.2, ______, ______
(ii) 5.73, 6.74, 7.75, ______, ______
(iii) 89.051, 189.061, 289.071, ______, ______
Ans:
(i) 4.7, 5.2
(ii) 8.76, 9.77
(iii) 389.081, 489.091
(i) 239.4
(ii) 16.098
(iii) 702.65
(iv) 8.006
(v) 7000.848
Ans:
(i) 200 + 30 + 9 +4/10
(ii)
(iii)
(iv)
(v)
(i) Form the greatest number less than 1 using digits 5, 8 and 9 only once.
Ans: 0.985
(ii) 0.723 × 1000 = ________
Ans: 723
(iii) Write the following in decimal form –
(a) Thirteen hundred,
(b) Two hundred twenty thousands
Ans:
(a) Thirteen hundred = 1300
(b) twenty thousand two hundred = 20200
(iv) Write the following in decimal form –
(a) 25/100,
(b) 11/100
Ans:
(a) 25/100=0.25
(b) 11/100 = 0.11
(v) Write the following in decimal to fraction –
(a) 0.56
(b) 0.159
Ans:
(a) 0.56 = 14/25
(b) 0.159=159/1000
(vi) Write the following in expanded form –
(a) 31.209,
(b) 24.56
Ans:
(a) 31.209 = 31+0.209
(b) 24.56 = 24+0.56
(vii) Choose the greater decimal number from pair –
(a) 0.8,1.36
(b) 8.90,12.60
Ans:
(a) 0.8,1.36 = 1.36 is greater than 0.8
(b) 8.90,12.60 = 12.60 is greater than 8.90
(viii) Convert the following decimals into common fraction –
(a) 0.6
(b) 4.25
Ans:
(a) 0.6 = 6/10
(b) 4.25 = 425/100
(ix) Convert the following fraction into common decimals-
(a) 9/10
(b) 57/3
Ans:
(a) 9/10 = 0.9
(b) 57/3 = 19
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1. What is a tenth and a hundredth? |
2. How do you convert a fraction to a decimal? |
3. How do you convert a decimal to a fraction? |
4. How can tenths and hundredths be represented on a number line? |
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