Decimals Class-6 ML Aggarwal ICSE APC Mathematics Solutions Chapter-7. We provide step by step Solutions of Exercise / lesson-7 Fractions ICSE Class-6th ML Aggarwal Mathematics.
Our Solutions contain all type Questions with Exe- 7.1, Exe-7.2, Exe- 7.3, Exe-7.4, Exe- 7.5, Objective Type Questions (includes: Mental Maths, Multiple Choice Questions, HOTS ), and Check Your Progress to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-6 Maths.
Decimals Class-6 ML Aggarwal ICSE APC Mathematics Solutions Chapter-7
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Objective Type Questions
Exercise – 7.1, Decimals Class-6 ML Aggarwal ICSE APC Mathematics Solutions
Question 1
Write each of the following decimal numbers in words:
(i) 30.5
(ii) 0.03
(iii) 108.56
(iv) 47.20
(v) 5.008
(vi) 26.039
Answer
(i) 30.5 Thirty point five
(ii) 0.03 zero point zero three
(iii) 108.56 One hundred eight point five six
(iv) 47.20 Forty seven point two zero.
(v) 5.008 Five point zero zero eight
(vi) 26.039 Twenty six point zero three nine
Question 2.
Write each of the following decimal numbers in the place value table :
(i) 4.2
(ii) 0.3
(iii) 205.9
(iv) 0.29
(v) 2.08
(vi) 7200.812
(vii) 38.007
Answer
Question 3
Write the following decimal numbers in the expanded form :
(i) 123.7
(ii) 43.06
(iii) 509.306
Answer
(i) 123.7 = 100 + 20 + 3 +
(ii) 43.06 = 40 + 3 +
(iii) 509.306 = 500 + 9 +
Question 4.
Write each of the following as a decimal number :
Answer
Question 5.
Write each of the following as decimals:
(i) Two ones and five tenths
(ii) Two tens and nine tenths
(iii) Six hundred point eight
(iv) Two hundred five anf five hundredths
(v) Seven and fifteen thousandths
Answer
Question 6
Write the number given in the following place value table in decimal form:
Answer
(i) 7102.306
(ii) 211.902
(iii) 3053.015
(iv) 70.03
(v) 5.40
(vi) 719.028
Question 7.
Show the following decimal numbers on the number line:
(i) 0.4
(ii) 1.9
(iii) 1.1
(iv) 2.5
Answer
Question 8.
Write the decimal numbers represented by the points A, B, C and D on the given number line:
Answer
A = 0.8
B = 1.3
C = 2.2
D = 2.9
Question 9.
Between which two numbers in tenths place on the number line does each of the given number lie?
(i) 0.06
(ii) 0.45
(iii) 0.66
(iv) 0.92
Answer
(i) 0 and 0.1
(ii) 0.4 and 0.5
(iii) 0.6 and 0.7
(iv) 0.9 and 1.0
ML Aggarwal Solutions Decimals Exercise – 7.2 Class-6 ICSE APC Mathematics
Question 1
Write the following decimal fractions as decimal numbers:
Answer
Question 2.
Write the following decimal numbers as decimal fractions:
(i) 54.01
(ii) 318.105
(iii) 0.37
(iv) 0.047
(v) 0.03
(vi) 34.5
Answer
Question 3.
Write the following decimal numbers as fractions in lowest terms:
(i) 0.8
(ii) 0.04
(iii) 0.125
(iv) 0.225
(vi) 0.066
(vii) 0.092
Answer
Question 4.
Convert the following decimal numbers into mixed fractions:
(i) 31.6
(ii) 3.25
(iii) 7.025
(iv) 95.95
Answer
Question 5.
Convert the following fractions into decimal numbers:
Answer
Question 6.
Convert the following unlike decimal numbers to like decimal numbers :
(i) 17.5, 3.912
(ii) 5.04, 13.1902
(iii) 2.451, 3.7, 28.34
(iv) 3.1,2.678,27.0103
Answer
(i) 17.500, 3.912
(ii) 5.0400, 13.1902
(iii) 2.451, 3.700, 28.340
(iv) 3.1000, 2.6780, 27.0103
Question 7.
In each of the following pairs of decimal numbers, state which number is greater ?
(i) 0.3, 0.4
(ii) 1, 0.99
(iii) 1.09, 1.093
(iv) 0.5, 0.05
Answer
(i) 0.3, 0.4
Multiply both with 10, we get
3, 4
∴0.4 is greater than 0.3
(ii) 1, 0.99
Multiply both with 100, we get
100, 99
∴ 1 is greater than 0.99
(iii) 1.09, 1.093
Multiply both with 1000, we get
1090, 1093
∴ 1.093 is greater than 1.09
(iv) 0.5, 0.05
Multiply both with 100, we get
50, 5
∴ 0.5 is greater than 0.05
Question 8.
In each of the following pairs of decimal numbers, state which number is smaller:
(i) 45.78, 345.8
(ii) 37.701, 37.71
(iii) 5.907, 5.903
Answer
(i) 45.78
(ii) 37.701
(iii) 5.903
Question 9.
Arrange the following decimal numbers in ascending order:
(i) 27.35, 27.305, 2.7, 2.543
(ii) 4.53, 4.07, 29.1, 0.9, 0.709
Answer
(i) 2.543, 2.7, 27.305, 27.35
(ii) 0.709, 0.9, 4.07, 4.53, 29.1
Question 10.
Arrange the following decimal numbers in descending order:
(i) 3.303, 33.03, 3.3, 30.33
(ii) 72.5, 2.75, 27.505, 0.275, 2.507
Answer
(i) 33.03, 30.33, 3.303, 3.3
(ii) 72.5, 27.505′, 2.75, 2.507, 0.275
Exercise – 7.3, Decimals Class-6 ML Aggarwal ICSE APC Mathematics Solutions
Question 1
Add:
(i) 17.5 , 8.8
(ii) 9.999 , 0.03
(iii) 5.87 , 1.03 , 0.1
(iv) 23.71, 9.9, 4.023
(v) 4.5, 16.024, 7.99
(vi) 8.79, 23.001 , 5.41, 0.875
Answer
Question 2
Work out:
(i) 5.82 – 2.65
(ii) 19.01 – 12.234
(iii) 15.4 + 3.015 – 14.237
(iv) 7.4 – 2.19 – 0.456 – 3.5
(v) 19.27 – 3.6 – 8.812 + 0.84
(vi) 6.4 – 2.351 – 1.45 – 0.999
Answer
Question 3.
What number added to 0.756 gives 1?
Answer
Let the number to be added is = x
According to question,
x + 0.756 = 1
x = 1.000 – 0.756 = 0.244
∴ Number addes is 0.2444.
Question 4.
By how much should 17.45 be decreased to get 7.9702?
Answer
One number = 17.45
Outcome = 7.9702
Second number = ?
Class-6 ML Aggarwal ICSE APC Mathematics Solutions Decimals Exercise – 7.4
Question 1
Evaluate the following:
(i) 3.7 × 4.5
(ii) 12.08 × 9.3
(iii) 238.06 × 7.5
(iv) 0.79 × 32.4
(v) 3.6 × 1.4 × 0.7
(vi) 9.01 × 2.5 × 1.6
Answer
Question 2
Work out the following:
(i) 70.756 ÷ 4
(ii) 2.46 ÷ 6
(iii) 3.016 ÷ 8
(iv) 8.64 ÷ 3.6
(v) 72.8 ÷ 0.04
(vi) 0.144 ÷ 0.02
Answer
Question 3
Multiply each of the following numbers by 10, 100 and 1000 orally ;
(i) 4.7
(ii) 3.45
(iii) 23.01
Answer
(i) 4.7
4.7 × 10 = 47
4.7 × 100 = 470
4.7 × 1000 = 4700
(ii) 3.45
3.45 × 10 = 34.5
3.45 × 100 = 345
3.45 × 1000 = 3450
Question 4
Divide each of the following numbers by 10, 100 and 1000 (orally):
(i) 4.7
(ii) 3.45
(iii) 23.01
Answer
(i) 4.7
4.7 ÷ 10 = 0.47
4.7 ÷ 100 = 0.047
4.7 ÷ 1000 = 0.0047
(ii) 3.45
3.45 ÷ 10 = 0.345
3.45 ÷ 100 = 0.0345
3.45 ÷ 1000 = 0.00345
(iii) 23.01
23.1 ÷ 10 = 2.301
23.1 ÷ 100 = 0.2301
23.1 ÷ 1000 = 0.02301
Exercise – 7.5, Class-6 ML Aggarwal ICSE APC Mathematics Solutions Decimals
Question 1
Express as rupees using decimals:
(i) 75 paise
(ii) 1025 paise
(ii) 63 rupees 9 paise
Answer
(i) 75 paise = ₹ = ₹0.75
(ii) 1025 paise = ₹ = ₹10.25
(iii) 63 rupees 9 paise = ₹ = ₹63.09
Question 2.
Express as cm using decimals:
(i) 8 mm
(ii) 263 mm
(iii) 13 cm 3 mm
Answer
(i) 8 mm = cm = 0.8 cm
(ii) 263 mm = cm = 26.3 cm
(iii) 13 cm 3 mm = 13 cm × cm = 13.3 cm
Question 3.
Express as metres using decimals:
(i) 6 cm
(ii) 528 cm
(iii) 7 m 55 cm
Answer
(i) 6 cm = m = 0.06 m
(ii) 528 cm = m = 5.28 m
(iii) 7 m 55 cm = 7 m + 55 cm
= 7 m + m = (7 + .55) m = 7.55 m
Question 4.
Express as km using decimals:
(i) 5 m
(ii) 888 m
(iii) 15 km 88 m
Answer
(i) 5 m = km = 0.005 km
(ii) 888 m = km = 0.888 km
(iii) 15 km 88 m = 15 km + 88 m
= 15 km + km = (15 + 0.88) kmsss
= 15.088 km
Question 5.
Express as kg using decimals:
(i) 37 g
(ii) 100 g
(iii) 5 kg 8 g
Answer
(i) 37g = kg = 0.037 kg
(ii) 100 g = kg = 0.1 kg
(iii) 5kg 8g = 5kg + 8gm
= 5 kg = kg.
= (5 + .008) kg = 5.008 kg
Question 6.
Anita bought 2 m 70 cm cloth for her shirt and 2 m 85 cm cloth for her trouser. Find the total length of the cloth bought by her.
Answer
Cloth bought for her shirt
= 2 m 70 cm = 2 m + 70 cm
= 2 m + m = 2 m + 0.70 m (∵ 1 cm =
m)
= (2 m + 0.70) m = 2.70 m
Cloth bought for her trouser
= 2 m 85 cm = 2 m + 85 cm
= 2 m + m = 2 m + 0.85 m (∵ 1 cm =
m)
= (2 + 0.85) m = 2.85
∴ Total lengths of cloth bought is 2.70 m + 2.85 m = 5.55 m
Question 7.
Sunita travelled 15 km 268 m by bus, 7 km 7 m by car and 500 m on foot in order to reach her school. How far is her school from her residence?
Answer
Distance travelled by bus
= 15 km 268 m = 15 km + 268 m
= 15 km + km
Question 8.
Rahul bought 4 kg 90 g apples, 2 kg 60 g grapes and 5 kg 300 g mangoes. Find the total weight of all the fruits he bought.
Answer
Weight of apples = 4 kg 90 g
= 4 kg + 0.09 kg
= (4 + 0.09) kg = 4.09 kg
Weight of grapes = 2 kg 60 g
= 2kg + (∵ 1g =
kg)
= 2 kg + 0.06 kg
= (2 + 0.06) kg = 20.6 kg
Weight of mangoes = 5 kg 300 g
= 5 kg + kg (∵1g =
kg)
= 5 kg + 0.3 kg
= (5 + 0.3) kg = 5.3 kg
Total weight of his purchases is
= 4.090 kg + 2.060 kg + 5.300 kg
= 11.450 kg
Question 9.
Rani had ₹18.50. She bought one ice¬cream for ₹11.75. How much money does she have now?
Answer
Money Rani had = ₹ 18.75
Ice-cream bought for ₹11.75
∴ Money she has now = ₹ 18.50 – ₹ 11.75 = ₹ 6.75
Question 10.
Tina had 20 m 5 cm long cloth. She cuts 4m 50 cm length of cloth from this for making a curtain. How much cloth is left with her?
Answer
Length of cloth Tina had
= 20 m 5 cm = 20 m + 5 cm
Length of cloth cut of 4 m 50 cm
= 4 m + 50 cm
Question 11.
Ruby bought a watermelon weighing 5 kg 300 g. Out of which she gave 2 kg 680 g to her neighbour. What is the weight of the watermelon left with Ruby?
Answer
Total weight of watermelon = 5 kg 300 gm
∴Given to neighbour = 2 kg 680 gm
∴ Weight of watermelon left = 5 × 1000 + 300 gm – 2 × 1000 gm + 680 gm
= 5300 gm – 2680 gm = 2620 gm
= = 2 kg 620 gm ⇒ 2.620 kg
Question 12.
The cost of 1 metre of cloth is ₹35.80. What will be cost of 9.8 metres of cloth?
Answer
Given : Cost of one metre cloth = ₹35.80
∴ Cost of 9.8 metre cloth is
Cost of 9.8 m cloth = ₹(35.80 × 9.8)
= ₹350.84
Question 13.
Farida bought some bags of cement, each weighing 49.8 kg. If the total weight of all the bags is 1792.8 kg, how many bags did she buy?
Answer
Total weight of bag = 1792.8 kg
Weight of cement bag = 49.8 kg
∴ The number of bags she bought
Objective Type Questions Chapter-7 Decimals for Class-6 ML Aggarwal ICSE APC Mathematics Solutions
Mental Maths
Question 1.
Fill in the blanks:
(i) The decimal point in a decimal number is placed between ones digit and ……….. digit.
(ii) The place value of the digit 3 in the decimal number 15.437 is ………
(iii) The decimal number 27.025 has ………. decimal places.
(iv) The decimal number 5.06 is read as five point
(v) If an object is divided into 1000 equal parts, then its 27 parts are represented by ………
(vi) Two decimal numbers having different number of …………. are called unlike decimal numbers.
(vii) 4 tens, 3 ones, 2 tenths, 0 hundredths and 5 thousandths in decimal form is written as ……
(viii)The smallest decimal number upto three decimal places is ……….
Answer
(i) The decimal point in a decimal number is placed between ones digit and tenths digit.
(ii) The place value of the digit 3 in the decimal number 15.437 is .
(iii) The decimal number 27.025 has 3 decimal places.
(iv) The decimal number 5.06 is read as five point zero six.
(v) If an object is divided into 1000 equal parts, then its 27 parts are represented by 0.027.
(vi) Two decimal numbers having different number of decimal places are called unlike decimal numbers.
(vii) 4 tens, 3 ones, 2 tenths, 0 hundredths and 5 thousandths in decimal form is written as 43.205.
(viii)The smallest decimal number up to three decimal places is 0.001.
Question 2
State whether the following statements are true (T) or false (F):
(i) Every decimal number can be represented by a point on a number line.
(ii) Fractions with denominator 10, 100, 1000, are called decimal fractions.
(iii) A decimal number having 3 decimal places can be written as a fraction with denominator 1000.
(iv) The value of a decimal number remains the same if any number of extra zeros are written at the end of a decimal number.
(v) If a decimal number is multiplied by 10, then the decimal point moves by one place to the left.
Answer
(i) Every decimal number can be represented by a point on a number line. True
(ii) Fractions with denominator 10, 100, 1000, are called decimal fractions. True
(iii) A decimal number having 3 decimal places can be written as a fraction with denominator 1000. True
(iv) The value of a decimal number remains the same if any number of extra zeros are written at the end of a decimal number. True
(v) If a decimal number is multiplied by 10, then the decimal point moves by one place to the left. False
Multiple Choice Question (MCQ)
Question 3
Question 3.
Five and seven hundredths is equal to
(a) 5.7
(b) 5.07
(c) 5.70
(d) 0.57
Answer
= 5.07 (b)
Question 4.
Sicty three thousandths is equal to
(a) 0.63
(b) 0.603
(c) 0.063
(d) 0.630
Answer
0.063 (c)
Question 5.
is equal to :
(a) 3.07
(b) 3.7
(c) 3.70
(d) 3.007
Answer
(a)
Question 6.
is equal to
(a) 5.03
(b) 5.3
(c) 5.003
(d) 5.0003
Answer
5.003 (c)
Question 7.
The place value of the digit 7 in the decimal number 5.0378 is
Answer
(d)
Question 8.
The place value of the digit 0 in the decimal number 13.405 is
Answer
Question 9.
The value of is
(a) 5.73
(b) 5.703
(c) 5.073
(d) 0.753
Answer
5.703 (b)
Question 10.
The value of is
(a) 1.2
(b) 0.012
(c) 0.12
(d) none of these
Answer
Question 11.
The value of is
(a) 5.4
(b) 5.25
(c) 5.04
(d) 5.004
Answer
(c)
Question 12.
The decimal number not equivalent to 5.7 is
(a) 5.70
(b) 5.07
(c) 5.700
(d) 5.7000
Answer
5.07 (b)
Question 13.
1 g is equal to
(a) 0.1 kg
(b) 0.01 kg
(c) 0.001 kg
(d) 0.0001 kg
Answer
0.001 kg (c)
Question 14.
2 km 7 m is equal to
(a) 2.7 km
(b) 2.07 km
(c) 2.007 km
(d) 2.0007 km
Answer
(c)
Question 15.
Among 2.34, 2 .43, 2.344 and 2.4, the greatest number is
(a) 2.34
(b) 2.43
(c) 2.344
(d) 2.4
Answer
2.34, 2.43, 2.344 and 2.4
Multiply the above number with 100
234, 243, 234.4 and 240
∴ The greater number is 2.43 (b)
Question 16.
5.2 – 3.6 is equal to
(a) 0.16
(b) 2.6
(c) 0.26
(d) 1.6
Answer
(d)
Question 17.
A decimal number lying between 2.2 and 2.22 is
(a) 2.12
(b) 2.23
(c) 2.219
(d) 2.3
Answer
2.219 (c)
Question 18.
0.023 lies between
(a) 0.2 and 0.3
(b) 0.02 and 0.03
(c) 0.029 and 0.03
(d) 0.026 and 0.024
Answer
0.02 and 0.03 (b)
Question 19.
0.7499 lies between
(a) 0.7 and 0.74
(b) 0.759 and 0.799
(c) 0.749 and 0.75
(d) 0.74992 and 0.75
Answer
0.749 and 0.75 (c)
Question 20.
Which of the following decimal numbers is the greatest?
(a) 0.182
(b) 0.038
(c) 0.219
(d) 0.291
Answer
0.291 (d)
Question 21.
Which of the following decimal numbers is the smallest?
(a) 0.108
(b) 1.08
(c) 0.801
(d) 0.81
Answer
0.108 (a)
Question 22.
0.003 × 0.2 is equal to
(a) 0.6
(b) 0.06
(c) 0.006
(d) 0.0006
Answer
0.0006 (d)
Question 23.
0.45 + 0.9 is equal to
(a) 50
(b) 5
(c) 0.5
(d) 0.05
Answer
0.5 (c)
Higher Order Thinking Skills ( HOTS )
Question 1.
On her birthday, Ayushi is taking her 5 friends to a movie and treats them with cold costs. The cost of a ticket is ₹150 and a cold drink cost ₹28.50. How much Ayushi has to spend?
Answer
Number of friends = 5 + 1 Ayushi herself = 6
Cost of 1 ticket = ₹150
Cost of 6 tickets = ₹ 150 × 6 = ₹ 900
Cost of 1 cold drink = ₹28.50
Cost of 6 cold drinks = ₹28.50 × 6 = 171
Ayushi has to spend = ₹900 + ₹171 = ₹ 1071
Question 2.
Write digits in the boxes of the number : to obtain
(i) greatest possible number
(ii) smallest possible number. Repetition of digits in a number is not allowed.
Answer
(i) Greatest possible number
(ii) Smallest possible number
Check Your Progress
Question 1
Convert the following decimal numbers into fractions (in lowest terms).
(i) 6.015
(ii) 0.876
(iii) 23.375
Answer
Question 2
Write the following fractions as decimals numbers:
Answer
Question 3.
Arrange the following decimal numbers in ascending order:
(i) 123.8, 74.205, 74.209, 7.4209
(ii) 85.01, 85.1, 85.001, 85.103
Answer
(i) 7.4209, 74.205, 74.209, 123.8
(ii) 85.001, 85.01, 85.1, 85.103
Question 4.
Arrange the following decimal numbers in desending order:
(i) 6.45, 4.65, 6.405, 64.5, 6.54
(ii) 73.5, 35.7, 7.35, 7.53, 7.035
Answer
(i) 64.5 > 6.54 > 6.45 > 6.405 > 4.65
(ii) 73.5 > 35.7 > 7.53 > 7.35 > 7.035
Question 5.
If the school bags of Garima and Nakul weigh 5.2 kg and 4.832 kg respectively, find
(i) the total weight.
(ii) the difference in weight of the bags.
Answer
Weight of Garima’s bag = 5.2 kg.
Weight of Nakul’s bag = 4.832 kg.
Question 6.
Evaluate the following:
(i) 31.42 – 17.853 -6.43
(ii) 13.01 – 5.428 – 3.703 + 2.99.
Answer
(i) 31.42 – 17.853 – 6.43
Question 7
By how much does the sum of 15.453 and 31.647 exceed the sum of 18.47 and 19.506?
Answer
Question 8
Namita travels 20 km 50 m every day. Out of this she travels 10 km 200 m by bus and the rest by auto. How much distance does she travel by auto?
Answer
Question 9
Ravi purchased 5 kg 400 g rice, 2 kg 20 g sugar and 10 kg 850 g flour (aata). Find the total weight of his purchases.
Answer
Weight of rice purchased
= 5 kg 400 g = 5 kg + 400 g
= 5 kg + kg [∵ 1 g =
kg]
= 5 kg + 0.400 kg
= (5 + 0.400) kg = 5.400 kg
Weight of sugar purchased
= 2 kg 20 g = 2 kg + 20 g
= 2 kg = kg [∵ 1 g =
kg]
= 2 kg + 0.020 kg = 2.020 kg
Weight of flour purchased
= 10 kg 850 g = 10 kg + 850 g
= 10 kg + kg [∵ 1 g =
kg]
= 10 kg + 0.850 kg
= (10 + 0.850) kg = 10.850 kg
∴ Total weight of his purchases is
Question 10
1 kg of pure milk contains 0.263 kg of fat. How much fat is there 15.5 kg of milk?
Answer
1 kg of pure milk contains fat = 0.263 kg
∴ 15.5 kg of milk contain fat
Question 11.
The product of two numbers is 15.275. If one number is 4.7, find the other.
Answer
The product of two number = 15.275
One number = 4.7
∴ Then other is =
-: End of Decimals Class-6 ML Aggarwal Solutions :–
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