Arrange these Roman numeral in descending order.
a. XXIII, XXXVII, II, XC
b. LXXIX, XXV, L, LXXXII
a. XC, XXXVII, XXIII, II
b. LXXXII, LXXIX, L, XXV
What is to be subtracted from CLXV to get CD?
CLXV = 165
CD = 400
= 400 – 165 = 235 or CCXXXV
Write the Hindu Arabic numeral for the following:
a. CDXXXI
b. DXIX
a. 431
b. 519
Write the Roman numeral for the following numerals.
a. 135
b. 240
a. CXXXV
b. CCXL
Express LXXX in Hindu Arabic numeral.
LXXX = 80
Express 121 in Roman numeral.
121 = CXXI
Solve: XXXIII + XIV
Value of XXXIII = 33
Value of XIV = 14
= 33 + 14 = 47 or XLVII
Solve: X + IX = ?
X = 10
IX = 9
X + IX = XIX
How many symbols are there in Roman numbers?
There are 7 symbols in Roman numbers
Answer the following:
a. What is to be subtracted from LXXVII to get XX?
b. What is to be subtracted from CLX to get XL?
a. LVII
b. CXX
Write the Roman numeral for the following:
a. 87
b. 112
c. 153
d. 178
a. 87 = LXXXVII
b. 112 = CXII
c. 153 = CLIII
d. 178 = CLXXVIII
Write the Hindu Arabic numeral for the following:
a. CLIV
b. CXC
c. CCI
d. LXXIV
a. 154
b. 190
c. 201
d. 74
Solve the following:
Observe the table and answer the following questions.
a. Cost of 1 kg apples = 
180
Cost of 21 kg apples = (180 X 21)
Thus, the cost of 21 kg apples is 3,780.
b. Cost of 1 kg strawberries = 455
Cost of 17 kg strawberries = (455 x 17)
Thus, the cost of 17 kg strawberries is 7,735.
c. Cost of 1 kg lychees = 37
Cost of 34 kg lychees = (37 X 34)
Thus, the cost of 34 kg lychees is 1,258.
If a bike costs 78,580, how much will it cost a company to buy 8 such bikes?
Cost of a bike = 78,580
Cost of 8 bikes = (78580 X 8)
Thus, 8 bikes would cost 6,28,640.
Delhi school arranged a day out to a water park for all the students. 864 students went to the water park. How much money did the school collected if the entry fee was rupees. 375 per head?
Number of students who went to the water park = 864
Entry fee = 375
Total amount collected by the school = (864 X 375)
Thus, the total money collected by the school was 3,24,000.
Observe the table and answer the following questions.
a. Cost of a teddy bear = 699
Cost of 15 teddy bears = (699 X 15)
Thus, 15 teddy bears would cost 10,485.
b. Cost of a bag = 1,399
Cost of 28 bags = (1399 X 28)
Thus, 28 bags would cost 39,172.
c. Cost of a pair of bat and ball = 999
Cost of 6 such pairs = (999 X 6)
Thus, cost of 6 pairs of bat and ball is 5,994.
Now, Cost of 12 bags =(1399 X 12)
Thus, cost of 12 bags is 16,788.
Now,
The total cost of 6 pairs of bat and ball and 12 bags
= 5,994 + 16,788
= 22,782
What is the total cost of 6 washing machines and 12 microwaves?
Cost of one washing machine = 16799
Cost of 6 washing machines = (16799 X 6)
Thus, cost of 6 washing machines is 1,00,794.
Cost of one microwave = 7,555
Cost of 12 microwaves = (7555 X 12)
Thus, cost of 12 microwaves is 90,660
Now,
The total cost of 6 washing machines and 6 microwaves = 1,00,794 + 90,660
= 1,91,454
The population of a village is 1563. What is the population of 42 such villages?
Population of a village = 1563
Population of 42 villages = 1563 X 42
Thus, the population of 42 villages is 65,646.
A family consumes 5 litres of milk in a day. How much do they consume in a leap year?
Quantity of milk consumed in a day = 5 L
Number of days in a leap year = 366
Quantity of milk consumed in a leap year = (366 X 5) L
Thus, the family consumes 1,830 litres of milk in a leap year.
Sam had 1,423 fifty rupee notes. How much money did he have in all?
Number of fifty rupee notes = 1423
Money Sam had= (1423 X 50)
Thus, Sam had 71,150 in all.
A television set costs 18,955. What is the cost of 7 such television sets?
Cost of a television set = 18,955
Cost of 7 such sets = (18955 X 7)
Thus, the cost of 7 television sets is 1,32,685.
There are 46 students in each section of a school. If there are 389 sections, how many students are there in the school?
Number of students in each section = 46
Number of sections = 389
Number of students in the school = 389 X 46
Thus, there are 17894 students in the school.
2547 people can sit in an auditorium. How many people could sit in 5 such auditoriums?
Number of people in an auditorium = 2547
Number of people in 5 such auditoriums = 2547 X 5
Thus, 12,735 people can sit in 5 such auditoriums.
1 metre cloth costs 899. How much 16 metres cloth would cost?
Cost of 1 metre cloth = 899
Cost of 16 metres cloth = (899 X 16)
Thus, 16 metres cloth would cost 14,384.
A bed sheet costs 675. How much will 24 bed sheets cost?
Cost of a bed sheet = 675
Cost of 24 bed sheets = (675 X 24)
Thus, 24 bed sheets would cost 16,200.
Answer the following:
a.
36 is the ________
6 is the _________
216 is the _________
b.
753 is the __________
4 is the __________
3012 is the ________
a.
36 is the _multiplicand_
6 is the _multiplier_
216 is the _product_
b.
753 is the _multiplicand_
4 is the _multiplier_
3012 is the _product_
Apply the commutative property and fill in the blanks.
a. 4586 X 9623 = ______ X 4586
b. _____ X 2699 = 2699 X 9663
c. 4236 X _____ = 9632 X _____
d. _____ X 2576 = 3465 X _____
e. 4756 X ______ = 5632 X 4756
a. 4586 X 9623 = _9623_ X 4586
b. _9663_ X 2699 = 2699 X 9663
c. 4236 X _9632_ = 9632 X _4236_
d. _3465_ X 2576 = 3465 X _2576_
e. 4756 X _5632_ = 5632 X 4756
Apply the associative property and fill in the blanks.
a. 78 X (89 X 96) = ( ____ X _____) X 96
b. (125 X 786) X 746 = ( ____ X ____) X 125
c. 1152 X (7466 X 1256) = ( _____ X _____) X 1256
d. (8692 X 5862) X 4599 = 8692 X ( _____ X ____)
e. 7856 X (1120 X 4526) = 1120 X (____ X _____)
a. 78 X (89 X 96) = ( _78_ X _89_) X 96
b. (125 X 786) X 746 = ( _786_ X _746_) X 125
c. 1152 X (7466 X 1256) = (1152_ X _7466) X 1256
d. (8692 X 5862) X 4599 = 8692 X ( _5862 X 4599)
e. 7856 X (1120 X 4526) = 1120 X (_7856 X _4526)
Apply the distributive property and fill in the blanks.
a. (25 +6) X 9 = ________ + ________
b. (100 - 1) X 29 = ________ - ________
c. (20 + 5) X 16 = _______ + ________
d. (100- 9) X 62 = _______- _______
e. (100 + 11) X 88 = ________ + _______
a. (25 +6) X 9 = _25 X 9__ + _6 X 9__
b. (100 - 1) X 29 = _100 X 29_ - _1 X 29_
c. (20 + 5) X 16 = __20 X 16_ + __5 X 16_
d. (100 - 9) X 62 = _100 X 62_ - _9 X 62__
e. (100 + 11) X 88 = __100 X 88_ + _11 X 88_
The product of two numbers is 156. If one number is 12, find the other.
According to question,
Ist number x second number = 156
12 x second number = 156
Second number = 156 ÷ 12
Thus, the second number is 13.
One decade = 10 years. How many years are there in:
a. 9 decades
b. 41 decades
a. 1 decade = 10 years
9 decades = (9 X 10) years
= 90 years
b. 1 decade = 10 years
41 decades = (41 X 10) years
= 410 years
1 metre (m) = 100 centimetres (cm).
How many centimeters are there in:
a. 1m = 100 cm
6 m = (6 X 100) cm
= 600 cm
b. 1m = 100 cm
84 m = (84 X 100) cm
= 8400 cm
Peter sells ice cream for a living. On Monday his revenue was CXX dollars. On Tuesday his revenue was CL dollars. Finally on Wednesday his revenue was L dollars. How much revenue is earned by Peter's so far?
Revenue earned by Peter on Monday = CXX dollars
Revenue earned by Peter on Tuesday = CL dollars
Revenue earned by Peter on Wednesday = L dollars
Total revenue earned by Peter = CXX + CL + L
= 120 + 150 + 50
= 320
= CCCXX
Hence Peter earned a revenue of CCCXX dollars in three days
What should be subtracted from CCCXII to make it CCLXXX?
Number = CCCXII
CCCXII = 312
CCLXXX = 280
Number to be added = 312 – 280
= 32
Hence the number is XXXII
Neha secured CCLXXX marks in first term. She scored XLV mars less in the second term. How many marks did she get in the second term? Find the total marks secured in both terms.
Marks scored by Megha in first term = CCLXXX
Marks scored in second term = CCLXXX – XLV
= CCXXXV
In an election Megha won CLXXX votes. The losing party got V votes less. How many votes did the losing party get?
Number of votes won by Megha = CLXXX
Number of votes won by losing party = CLXXX – V
= CLXXV
In a cricket match the difference between the runs scored by the two teams is CCC. If one team scored CLXI runs, how many runs did the other team score?
Total runs scored = CCC
Runs scored by one team = CCLXI
Runs scored by second team = CCC – CCLXI
= CXXXIX
Solve: 9000 - 99
8901
Solve: 4075 + 1212
5287
Solve: 1542 + 5976
7518
Solve: 6703 - 2313
4390
Solve: 4786 + 2456
7242
Solve: 7774 - 5632
2142
Solve: 5087 - 3631
1456
Solve: 3262 + 108
3370
Solve: 1423 - 807
616
Solve: 4021 + 1422
5443
Solve: 5000 - 3400
1600
Solve: 4110 + 3100
7210
Solve: 8000 - 1200
6800
Solve: 4500 - 2900
1600
Solve: 3400 + 3100
6500
The school fee for one term (3 months) is ₹ 8,460. Find the fees for the whole year.
School fee for 3 months = INR8,460
School fee for 1 month =INR (8,460 ÷ 3) = ₹2,820
School fee for 12 months = ₹(2,820 X 12)
= ₹33,840
Thus, the school fee for the whole year is ₹ 33,840.
If a sugar bag contains 22 kilograms of sugar, how many kilograms of sugar would 46 such bags contain?
Quantity of sugar in 1 bag = 22 kg
Quantity of sugar in 46 bags = (46 x 22) kg
= 1,012 kg
Thus, there would be 1,012 kilograms of sugar in 46 bags.
Mr. Reed spends 2,496 per quarter of a year on vegetables. How much will he spend on vegetables in a year?
Money spent every three months = 2, 496
Money spent every month = (2,496 ÷ 3) = 832
Money that Mr. Reed will spend on vegetables in a year = (832 × 12)
= 9,984
Thus, Mr. Reed will spend 9,984 on vegetables in a year.
If 42 kilograms of chocolates cost 5,460, what will be the cost of 30 kilograms of chocolates?
Cost of 42 kg chocolates = 5,460
Cost of 1 kg chocolates = (5460 ÷ 42)
= 130
Cost of 30 kg chocolates = (130 X 30)
= 3,900
Thus, the cost of 30kg chocolates is 3,900.
A worker earns 1050 in 7 days. How much money will he earn in 15 days?
Money earned in 7 days = 1050
Money earned in 1 day = (1050 ÷ 7)
= 150
Money earned in 15 days = (150 x 15)
= 2,250
Thus, he will earn 2,250 in 15 days.
A table has 4 legs. How many legs do 46 tables have?
Number of legs in one table = 4
Number of tables = 46
Total number of legs = 46 X 4
= 184
Thus, 46 tables have 184 legs.
One hour has 60 minutes. How many minutes do 75 hours have?
Number of minutes in 1 hour = 60
Number of minutes in 75 hours = (75 X 60)
= 4500
Thus, 75 hours have 4500 minutes.
A book has 125 pages. How many pages would 16 such books have?
Number of pages in 1 book = 125
Number of pages in 16 books = (125 x 16) pages
= 2000 pages
Thus, there are 2000 pages in 16 such books.
12 suits can be made by using 54 metres of cloth. How much cloth is needed for one suit?
Cloth needed for 12 suits = 54 m
Cloth needed for 1 suit = (54 ÷ 12) m
= 4.5 m
Thus, 4.5 m cloth is needed for one suit.
A family consumes 60 litres of milk in 15 days. How much does the family consume in a day?
Milk consumed in 15 days = 60 L
Milk consumed in a day = (60 ÷ 15) L
= 4 L
Thus, 4 L of milk is consumed by this family in a day.
6 cold drink bottles contain a total of 3900 mL of cold drink. How much cold drink is there in each bottle?
Quantity of cold drink in 6 bottles = 3900 mL
Quantity of cold drink in 1 bottle = (3900 ÷ 6) mL
= 650 mL
Thus, there is 650 mL of cold drink in each bottle.
7 television sets cost 98,000. Find the cost of one television set.
Cost of 7 television sets = 98,000
Cost of 1 television set = (98,000 ÷ 7)
= 14,000
Thus, the cost of 1 television set is 14,000.
8 m cloth cost 1,120. What is the cost of 1 m cloth?
Cost of 8m cloth = 1,120
Cost of 1m cloth = (1,120 ÷ 8)
= 140
Thus, 1 m cloth costs 140.
The total cost of 12 chairs is ₹5,400. Find the cost of 1 chair.
Cost of 12 chairs = ₹ 5,400
Cost of 1 chair = ₹ (5,400 ÷ 12)
= ₹ 450
Thus, the cost of 1 chair is ₹ 450.
A factory manufactures 42 cars each day, how many cars are produced in 25 days?
Number of cars manufactured in 1 day = 42
Number of cars manufactured in 25 days = 42 X 25
= 1,050
Thus, a total of 1,050 cars are produced by the factory in 25 days.
If a train covers a distance of 86 km in 1 hour, how much distance will it cover in 12 hours?
Distance covered in 1 hour = 86 km
Distance covered in 12 hours = (86 X 12) km
= 1032 km
Thus, a train covers a distance of 1032 km in 12 hours.
If one chocolate cake costs ₹ 420, how much will 5 cakes cost?
Cost of 1 chocolate cake = 420
Cost of 5 chocolate cakes = (420 X 5)
= 2100
Thus, 5 chocolate cakes will cost 2100.
A toy car costs 25. Find the cost of 14 such toy cars.
Cost of 1 toy car = 25
Cost of 14 toy cars = (25 X 14)
= 350
Thus, the cost of 14 such cars is 350.
State whether the statements given are true of false.
7, then the cost of 8 samosas is 42. 48, then the cost of 15 erasers is 60.Fill in the blanks:
40, then the cost of 8 soaps is ____________. 120, then the cost of 1 chocolate is____________. 30, and then the cost of 12 bottles is____________. 630, then the cost of 1 key chain is _________. 320 20 360 35A boy increased his stamp collection of 2341 by adding 1300 more stamps. How many stamps does he have now?
Number of old stamps = 2341
Number of stamps added = 1300
Total number of stamps = 2341 + 1300
= 3641
Write a number which is 3403 less than 7054.
3403 less than 7054 = 7054 - 3403
= 3651
How much is 1643 less than 3500?
1643 less than 3500 = 3500 - 1643
= 1857
How much is 1153 more than 4034?
1153 more than 4034 = 1153 + 4034
= 5187
Write a number which is 1320 more than 5604.
1320 more than 5604 = 5604 + 1320
= 6924
There are 5987 trees in a forest. 1049 trees got burnt in a forest fire and 364 were cut by people. How many trees were left in the forest?
Total number of trees = 5987
Number of trees got burnt = 1049
Number of trees cut by the people = 364
Number of trees left = 5987 – (1049 + 364)
= 5987 – (1413)
= 4574
Hence 4574 trees are left in the forest.
A school bought 17,569 biscuit packets to distribute on the Annual Day Function. Only 9,897 students could attend the function. How many packets remained in the school, if each child who attended the function got one?
Total number of biscuit packets = 17,569
Number of students who attended the function = 9,897
Number of remaining packets = 17,569 – 9,897
= 7,672
Thus, 7,672 biscuit packets were still left in the school.
There are 8965 pages in an encyclopedia. Ajay read 7012 pages in a week. How many pages are left?
Number of pages = 8965
Number of pages read by Ajay = 7012
Number of pages left = 8965 – 7012
= 1953
Hence 1953 pages are left to be read by Ajay.
Pooja wants to buy a mixer grinder worth 7052. If she has 4005 with her, how much more money does she need to buy the same?
Raman deposited ₹3503 in first time and ₹3504 in second time. But after few days he spent ₹2067. How much money is left with him?
Amount deposited by Raman first time = ₹3503
Amount deposited by Raman second time = ₹3504
Total amount deposited = ₹3503 + ₹3504
= ₹7007
Amount spent by him = ₹2067
Amount left with him = ₹7007 - ₹2067
= ₹4940
Harry wants to set up a poultry farm. He buys 15 hens for 24,750.
24,750Cost of 1 hen = (24750 ÷ 15)
= 1,650
Thus, each hen costs 1650.
1,650Cost of 19 more hens = (1,650 X 19)
= 31,350
Thus, he will pay 31,350 if he buys 19 more hens.
1650Cost of 27 hens = (1650 X 27)
= 44,550
Thus, he has to pay 44,550 for 27 hens.
A tiger covers a distance of 192 km in 2 hours. How much distance will it cover in 13 hours?
Distance covered by the tiger in 2 hours =192 km
Distance covered in 1 hour = (192 ÷ 2) km
= 96 km
Distance covered in 13 hours = (96 X 13) km
= 1,248 km
Thus, a tiger covers a distance of 1,248 km in 13 hours.
A factory produces 1968 soft toys in 8 days. How many toys will be manufactured in 36 days?
Toys manufactured in 8 days = 1968
Toys manufactured in 1 day = 1968 8
= 246
Toys manufactured in 36 days = 246 X 36
= 8856
Thus, a total of 8856 toys will be manufactured in 36 days.
One year’s rent of a house is 33,600. If the Gonzales family wants to stay in the house for only 7 months, how much rent will they have to pay?
Rent for 1 year = 33,600
Rent for 1 month = (33600 12)
= 2,800
Rent for 7 months = (2,800 X 7)
= 19,600
Thus, the Gonzales family will pay 19,600 for 7 months.
Look at the table and answer the following:
27Cost of 25 kg of flour = (25 x 27) = 675
84Cost of 20 kg of pulses = (84 × 20) = 1680
110Cost of 10 L of oil = (110 X10) = 1110
Solve.
a. 65 minutes have 3900 seconds. How many seconds are there in 41 minutes?
b. 12 days have 288 hours. How many hours are there in 18 days?
1 minute = (3900 ÷ 65) seconds
= 60 seconds
41 minutes = (41 x 60) seconds
= 2460 seconds
1 day = (288 ÷ 12) hours
= 24 hours
18 days = (18 x 24) hours = 432 hours
Rapid fire.
20, so 8 balls will cost _______. 140. The cost of 12 pens is _____. 25. The cost of 6 dozen bananas is ______.a. 2 balls cost 20. 8 balls will cost _80__.
b. 3 trucks can carry 15 bags of sugar. _40_ bags of sugar can be carried in 8 trucks.
c. 8 hours have 480 minutes. _60__ hours have 600 minutes.
d. 4 pens cost 140. The cost of 12 pens is _420_.
e. A dozen bananas cost 25. The cost of 6 dozens is _150_.
Solve.
Length of ribbon on 1 roll = (119 ÷ 17) m
= 7 m
Thus, the length of 1 roll of ribbon is 7 metres.
= 175 m
Thus, the total length of ribbon on 25 rolls is 175 metres.
2500 litres of water can be stored in 5 water tanks. How many litres of water can be stored in 12 such tanks?
Water stored in 5 tanks = 2500 L
Water stored in 1 tank = (2500 ÷ 5) L
= 500 L
Water stored in 12 tanks = (500 X 12) L
= 6000 L
Thus, 6000 litres of water can be stored in 12 tanks.
Solve.
732. 2,250. Find the cost of 8 bed sheets.
732Cost of 1 kg apples = (732 ÷ 6)
= 122
Cost of 7 kg apples = (122 X 7)
= 854
Thus, the cost of 7 kg apples is 854.
2,250Cost of 1 bed sheet = (2250 ÷ 5)
= 450
Cost of 8 bed sheets = (450 X 8)
= 3,600
Thus, the cost of 8 bed sheets is 3,600.
One hour has 60 minutes. How many minutes are there in:
a. 46 hours
b. 28 hours.
a. 1 hour = 60 minutes
46 hours = (46 X 60) minutes
Thus, there are 2760 minutes in 46 hours.
b. 1 hour = 60 minutes
28 hours = (28 X 60) minutes
Thus, 28 hours have 1680 minutes.
Multiply by 1000.
Multiply by 100.
a. 475
b. 8569
c. 1253
a. 475 X 100 = 47500
b. 8569 X 100 = 856900
c. 1253 X 100 = 125300
Multiply the following.
a.
b.
c.
a.
b.
c.
Fill in the missing blocks.
a.
b.
a.
b.
Multiply:
a. 7896 by 52
b. 1563 by 14
c. 5314 by 27
a. 7896 X 52
Thus, 7896 X 52 = 410592
b. 1563 X 14
Thus, 1563 X 14 = 21882
c. 5314 X 27
Thus, 5314 X 27 = 143478
Â
Multiply:
a. 756 by 12
b. 963 by 15
c. 459 by 58
