CBSE Class 6 Mathematics Knowing our Numbers MCQs

Question: The product of the place values of two 2’s in 428721 is ?

a) 4

b) 40000

c) 400000

d) 40000000

Answer:  400000

Question: 3×10000 + 7×1000 + 9 × 100 + 0 × 10 + 4 is the same as

a) 3794

b) 37940

c) 37904

d) 379409

Answer: 37904

Question: If 1 is added to the greatest 7-digit number, it will be equal to

a) 10 thousand

b) 1 lakh

c) 10 lakh

d) 1 crore

Answer: 10 lakh

Question: The expanded form of the number 9578 is

a) 9 × 10000  + 5 × 1000  + 7 × 10 + 8 × 1

b) 9 × 1000  + 5 × 100 + 7 × 10 + 8 × 1

c) 9 × 1000  + 57 × 10 + 8 × 1

d) 9 × 100 + 5 × 100 + 7 × 10 + 8 × 1

Answer: 9 × 1000  + 5 × 100 + 7 × 10 + 8 × 1

Question: In Following option which pair is not coprime?

a) 8,10

b) 11,12

c) 1,3

d) 31,33

Answer: 8,10

Question: Between 58 and 80 what will be the number of even number?

a) A 13

b) 12

c) 11

d) 10

Answer: A 13

Question: What will be the sum of the prime factor of 1729 is?

a) B 39

b) 32

c) 34

d) 38

Answer: B 39

Question: Number divisible by 5 and 6. But not be divisible by?

a) 60

b) 30

c) 15

d) 10

Answer: 60

Question: What is the predecessor of 1 Lakh is?

a) 99999

b) 999999

c) 99000

d) 100001

Answer: 99999

Question: LCM of 20,15 and 10 is

a) 60

b) 180

c) 90

d) 30

Answer: 60

Question: Out of Four option which is divisible by 11?

a) 22222222

b) 3333333

c) 1111111

d) 1011011

Answer: 22222222

Question: From four of these which statement is not true?

a) The HCF of an even and an odd number is even

b) The HCF of two co prime number is 1

c) The HCF of two consecutive even number is 2

d) The HCF of two distinct prime number is 1

Answer: The HCF of an even and an odd number is even

Question: 2 million is equal to

a) 20 Lakh

b) 2 Lakh

c) 2 Crore

d) 20 Crore

Answer: 20 Lakh

Question: The place value of 4 in the number 39458201 is

a) 400000

b) 40000000

c) 40000

d) 4

Answer: 400000 

Question: Make the smallest four digit number by using any one digit twice by 3, 8, 7?

a) 3378

b) 3387

c) 8873

d) 8378

Answer: 3378

Question: Make the greatest and the smallest four digit number using any four-digit number with digit 5 always at Thousand place?

a) 5999, 5000

b) 5789, 5120

c) 5987, 5012

d) 5986, 5012

Answer: 5999, 5000

Question: The Number Obtained When 433 is divided by 7 is?

a) LXII

b) LXIIIII

c) XXXVIII

d) LXIX

Answer: LXII

Question: Which Number will occur when one will be added to the greatest four-digit number

a) smallest 5-digit number

b) greatest 4-digit number

c) greatest 5-digit number

d) smallest 4-digit number

Answer: smallest 5-digit number

Question: Which of the following number in roman numerals is incorrect?

a) LLX

b) XLL

c) LXXX

d) LX

Answer: LLX

Question: Choose the correct addition of C and XXXVIII?

a) 138

b) 100

c) 23

d) 38

Answer: 138

Question: How many crores in one Billion?

a) 100

b) 20

c) 50

d) 90

Answer: 100

Question: A machine on an average manufacturing 2825 bolt in a day. How many bolt did it manufacture in the month of January?

a) 87575

b) 81925

c) 84750

d) 79100

Answer: 87575

Question: The largest four digit number, using any one number twice from digit 5,9,4 and 8?

a) 8945

b) 9854

c) 9845

d) 9954

Answer: 8945

Question: Using digits 4, 5, 6 and 0 without repetition make the greatest four digit number?

a) 6540

b) 4650

c) 4560

d) 5640

Answer: 6540

a) 20

b) 15

c) 28

d) 17

Answer: 20

Question: What is the identity of multiplication?

a) 1

b) 0

c) 3

d) 6

Answer: 1

Question: If a number is subtracted from 17 and output is 2, then what will be no. from the following?

a) 14

b) 4

c) 10

d) 9

Answer: 14

Question: From the following which one is the successor of 1099999?

a) 1100000

b) 9999999

c) 1100001

d) 1009998

Answer: 1100000

Question: What is the value of 5603*376-5603*76?

a) 1680900

b) 72900

c) 56090

d) 563700

Answer: 1680900

Question: What is the value of 85*75?

a) 6375

b) 6275

c) 6475

d) 6575

Answer: 6375

Question: Counting numbers are called as

a) Natural Numbers

b) Prime Numbers

c) Composite Numbers

d) Whole Numbers

Answer: Natural Numbers

Question: What is the successor and predecessor of 11999?

a) 12000, 11998

b) 12999, 11997

c) 12001, 11996

d) 12004, 11906

Answer: 12000, 11998

Question: The tiffin service charge Rs.20 for Lunch and an extra Rs. 5 for milk or tea per day? How much money will be charged in a 7 day week?

a) 175

b) 100

c) 75

d) 125

Answer: 175

Question: Which whole no. does not have a predecessor?

a) 0

b) 3

c) 1

d) 7

Answer: 0

Question: Estimate 734 + 998 by rounding off the nearest tens

a) 1730

b) 1740

c) 1750

d) 1760

Answer: 1730

Question: The expanded form for 308927 is

a) 300000 + 8000 + 900 + 20 + 7

b) 300000 + 800 + 90 + 2 + 7

c) 30000 + 80000 + 9000 + 20 + 7

d) 3000000 + 8000 + 900 + 20 + 7

Answer: 300000 + 8000 + 900 + 20 + 7

Question: The corresponding numeral for 5x 100000 + 8x10000 + 1x1000 + 6x100 + 2x10 + 3x1 is

a) 581623

b) 5081623

c) 5810623

d) 5816023

Answer: 581623

Question: The sum of the number 765432 and the number obtained by reversing its digit is

a) 999999

b) 980356

c) 9999998

d) 930865

Answer: 999999

Question: When 1787 is rounded off to nearest tens , we get

a) 1790

b) 1780

c) 1800

d) 1700

Answer: 1790

Question: Estimation of the quotient 86 / 9 to nearest 10

a) 10

b) 90

c) 80

d) none of these

Answer: 10

Question: In the international system of numeration we write one billion for

a) 100 crore

b) 10 crore

c) 1 crore

d) 1000 crore

Answer: 100 crore

Question: For 500 which symbol is used in Roman system

a) D

b) M

c) L

d) C

Answer: D

Question: Which of the following is meaning less.

a) XVV

b) XIX

c) XIII

d) XL

Answer: XVV

Question: The difference between the face value and place value of 4 in 2416 is .

a) 396

b) 404

c) 2996

d) 3000

Answer: 396

Question: What must be subtracted from 11010101 to get 2635967.

a) 8374134

b) 7383414

c) 934134

d) 937414

Answer: 8374134

Question: In a basket there are two thousand kg apples , 340 kg oranges, and 20 kg grapes, what is the total weight of fruits?

a) 2860

b) 2870

c) 2840

d) 2850

Answer: 2860

Question: The town news paper is published everyday . One copy has 12 pages . Every day 11980 copies are printed. How many total pages are printed everyday

a) 143760

b) 153760

c) 163760

d) 143660

Answer: 143760

Question: Population of sundernagar was 235471 in the year 1991. In the year 2001 it was found to be increased by 72598. What was the population of the city 2001

a) 308429

b) 309429

c) 30428

d) 30328

Answer: 308429

Question: What is the difference between the greatest and the least number that can be written using the digits 6, 2,7,4,3, each only once

a) 52965

b) 50000

c) 52865

d) 51965

Answer: 52965

Question: A box contains 500,000 medicine tablets each weighing 10 mg. what is the total weight of all the tablets in the box in kilograms

a) 5kg

b) 50,000kg

c) 5,00,000kg

d) 500kg

Answer: 5kg

Question: How many millimeter make one kilometer.

a) 1000000

b) 100000

c) 10000

d) 1000

Answer: 1000000

Question: How many centimeters make a meter.

a) 100

b) 10

c) 1

d) 1000

Answer: 100

Question: Insert, commas suitably according to International system of numeration in 99985102

a) 99, 985, 102

b) 99985, 102

c) 999, 85102

d) 9, 99, 85, 102

Answer: 99, 985, 102

a) 9, 84,32, 701

b) 98432701

c) 98, 432, 701

d) 9843, 2701

Answer: 9, 84,32, 701

Question: 1 million is equal to how many lakhs

a) 10

b) 1

c) 100

d) 1000

Answer: 10

Question: Write the numeral for the number Nine crore five lakh fourty one

a) 90500041

b) 95000041

c) 9500041

d) 905041

Answer: 90500041

Question: One crore is similar to

a) 100 lakhs

b) Hundred thousand

c) 1000 hundreds

d) 10 hundreds

Answer: 100 lakhs

Question: The smallest 8 digit number is called .

a) One crore

b) One lakh

c) Ten crore

d) Ten lakh

Answer: One crore

Question: If we add 1 more to the greatest 6 digit number we get

a) Ten lakh

b) One lakh one

c) One lakh

d) Ten lakh one

Answer: Ten lakh

Question: Expand the number 500428

a) Five lakh four hundred twenty eight

b) Fifty lakh four hundred twenty eight

c) Five crore four hundred thirty eight

d) five lakh four hundred eight.

Answer: Five lakh four hundred twenty eight

Question: When 1 is subtracted from smallest 5 digit number what is the result?

a) Greatest 4 digit number

b) Smallest 5 digit number

c) Greatest 5 digit number

d) Smallest 4 digit number

Answer: Greatest 4 digit number

Question: Which is greatest and smallest 4 digit number.

a) 9999, 1000

b) 1000, 99999

c) 9999, 10000

d) 10000, 9999

Answer: 9999, 1000

Question: When one is added to the greatest four digit number what is the result?

a) Smallest 5 digit number

b) Greatest 5 digit number

c) Smallest 4 digit number

d) Greatest 4 digit number

Answer: Smallest 5 digit number

Question: (i)Ascending order means arrangement from the smallest to the greatest

(ii) Ascending order means arrangement from the greatest to the smallest

(iii) Descending order means arrangement from the greatest to the smallest

(iv) Descending order means arrangement from the smallest to the greatest

a) Only statements (i) & (iii) are true

b) All statements are false

c) Only statements (ii) & (iv) are true

d) All statements are true

Answer: Only statements (i) & (iii) are true

Question: Correct descending order of 5000,7500,85400,7861 is

a) 85400, 7861, 7500, 5000

b) 5000, 7500, 85400, 7861

c) 85400, 7500, 7861, 5000

d) 7861, 7500, 7861, 5000

Answer: 85400, 7861, 7500, 5000

Question: Correct ascending order of 847, 9754, 8320, 571

a) 571, 847, 8320, 9754

b) 571, 8320, 847, 9754

c) 9754, 847, 8320, 571

d) 9754, 8320, 847, 571

Answer: 571, 847, 8320, 9754

Question: Make the greatest and the smallest four digit number using any four-digits number with digit 5 always at thousand place

a) 5987, 5012

b) 5999, 5000

c) 5789, 5120

d) 5986 , 5012

Answer: 5987, 5012

Question: Make the smallest four digit number by using any one digit twice by 0,4,9

a) 4009

b) 49

c) 449

d) 4049

Answer: 4009

Question: Make the greatest four digit number by using any one digit twice by 3,8,7

a) 8873

b) 8378

c) 3387

d) 8773

Answer: 8873

Question: Using digits 0,1,2,3 without repetition make the smallest four digit number

a) 1023

b) 123

c) 1230

d) 1032

Answer: 1023

Question: Using digits 4, 5, 6 & 0 without repetition make the greatest four digit number

a) 6540

b) 4560

c) 6504

d) 5640

Answer: 6540

Question: Which pair has same digits at hundreds place

a) 2334, 2340

b) 4232, 4331

c) 5432, 6922

d) 6524, 7823

Answer: 2334, 2340

Question: Identify the greatest and the smallest in 2853 , 7691 , 9999 , 12002 , 124

a) 1200, 2124

b) 7691, 124

c) 9999, 124

d) 2853, 124

Answer: 1200, 2124

Question: The smallest two digit number is

a) 10

b) 90

c) 99

d) none

Answer: 10

Question: Greatest three digit number using three distinct digit

a) 987

b) 978

c) 998

d) 999

Answer: 987

Question: Successor of 1099 is

a) 1100

b) 1011

c) 1000

d) 1010

Answer: 1100

Question: 1 lakh is

a) 100000

b) 1000000

c) 10000

d) 1000

Answer: 100000

Question: One crore is

a) 10000000

b) 1000000

c) 100000

d) 100000000

Answer: 10000000

Question: One million is

a) ten lakh

b) 100 lakh

c) one crore

d) one lakh

Answer: ten lakh

Question: Ten billion is

a) one thousand crore

b) ten crore

c) none

d) one hundred crore

Answer: one thousand crore

Question: 1 kg is

a) 100000 mg

b) 1000000 mg

c) 1 mg

d) 100 mg

Answer: 100000 mg

Question: 1 L is

a) 1000 mL

b) 10 mL

c) 100 mL

d) 10000 mL

Answer: 1000 mL

Question: 421 rounded to nearest ten

a) 420

b) 400

c) 421

d) none

Answer: 420

Question: 7500 rounded off to the nearest thousand is

a) 8000

b) 7600

c) 7000

d) none

Answer: 8000

Question: 557 rounded off to nearest 100 is

a) 600

b) 550

c) 500

d) none

Answer: 600

Question: One crore one lakh one thousand one in figures is

a) 10101001

b) 11001001

c) 1011001

d) 10100100

Answer: 10101001

Question: The smallest 4- digit number having four different digit

a) 1023

b) 1230

c) 1203

d) 0123

Answer: 1023

Question: The estimated quotient for 88÷31

a) 3

b) 4

c) 5

d) 6

Answer: 3

Question: The estimated product of 59 and 5

a) 300

b) 350

c) none

d) 295

Answer: 300

Question: Estimation of 7839 to nearest tens is

a) 7840

b) 7839

c) 7800

d) 7830

Answer: 7840

Question: Estimation of 7839 to nearest hundreds is

a) 7800

b) 7830

c) 7839

d) 7840

Answer: 7800

Question: Estimation of 7839 to nearest thousands is

a) 8000

b) 7839

c) 7830

d) 7800

Answer: 8000

Question: 1 m = ________ mm

a) 1000

b) 10,000

c) 100

d) 10

Answer: 1000

Question: The successor of a given whole number is a number _________ than the given number

a) 1 more

b) 1 less

c) 2 more

d) 2 less

Answer: 1 more

Question: The predecessor of a given whole number is a number ________ than the given number

a) 1 less

b) 2 more

c) 2 less

d) 1 more

Answer: 1 less

Question: The smallest natural number is

a) 1

b) – 1

c) 0.1

d) 0

Answer: 1

Question: Radius of the earth is

a) 6400 km

b) 6400 cm

c) 6400 mm

d) 6400 m

Answer: 6400 km