# NCERT Class 6 Mathematics Chapter 1 Number System Exemplar Solutions

Read NCERT Class 6 Mathematics Chapter 1 Number System Exemplar Solutions below, students should study NCERT Exemplar class 6 Mathematics available on Studiestoday.com with solved questions and answers. These chapter wise answers for class 6 Mathematics Exemplar problems have been prepared by teacher of Grade 6. These NCERT Exemplar class 6 solutions have been designed as per the latest NCERT syllabus for class 6 and if practiced thoroughly can help you to score good marks in standard 6 Mathematics class tests and examinations

NCERT Class 6 Mathematics Chapter 1 Number System Exemplar Solutions. Exemplar questions have been designed by NCERT to include practice questions of all levels and students capabilities. The questions include Multiple Choice Questions, Short Answer Questions, Long Answer Questions. Exemplar questions are very important and should be solved by students to understand the concepts for NCERT Class 6 Mathematics Chapter 1 Number System Exemplar Solutionsfor Class 6. This will help the students to understand the chapter correctly and also identify any area for improvement. Students are advised to solve all exemplar questions and then compare their solutions with the free exemplar solutions provided here. The solutions provided here have been prepared by experienced teachers and are free to download in pdf. You can click on links for other mathematics chapters also to download more free solutions and study material.

Question. Which is the correct word form of 9.04?
(a) Nine and four tenths
(b) Ninety and four hundredths
(c) Nine and four hundredths
(d) Nine and four thousandths

Question. 12 : Even number :: ___ : Odd number.
(a) 14
(b) 17
(c) 16
(d) 10

Question. Sara's user ID is a 5-digit number. The 9 is in the ten thousands place. The 0 is in the ones place. An 8 is in the thousands place. A 4 is in the tens place. A 2 is in the hundreds place. What is Sara's user ID number?
(a) 90,842
(b) 89,204
(c) 98,420
(d) 98,240

Question. Pick the odd one out keeping in mind the divisibility rules of 3.
(a) 252
(b) 367
(c) 183
(d) 492

Question. How many four digit numbers are there between 999 and 3000? (2008, Tricky)
(a) 2001
(b) 2000
(c) 1999
(d) 1998

Question. This is the value where the digit is in the number, such as units, tens, hundreds, etc.
(a) Time value
(b) Place value
(c) Difference value
(d) Product value

Question. How do you write 10.067 in expanded notation?
(a) 10 + 6/100 + 7/1,000
(b) 1 + 6/10 + 7/100
(c) 100 + 60 + 7
(d) 1 + 6/100 + 7/1,000

Question. What is the value of 2 in the number: 529,307,604,000 ?
(a) Hundred billion
(b) Ten billion
(c) Ten million
(d) One million

Question. 11 : Prime Number :: ____ : Composite number.
(a) 12
(b) 13
(c) 17
(d) 7

Question. Sum of a number of two digits and the number obtained by reversing the digits of the first number is 110. If the difference of the digits is 4, then the number is
(a) 62
(b) 73
(c) 84
(d) 51

Question. The expanded form of 6,153,122 is:
(a) 6,000,000 + 100,000 + 50,000 + 3000 + 100 + 20+2
(b) 60,000,000 + 100,000 + 50,000 + 3000 + 100 + 20 + 2
(c) 600,000,000 + 100,000 + 50,000 + 3000 + 100 + 20 + 2
(d) 6,000,000,000 + 100,000 + 50,000 + 3000 + 100 + 20 + 2

Question. What is the value of the 5 in the following numbers? 132,070,689,050
(a) ten
(b) ten thousand
(c) ten million
(d) ten billion

Question. Which shows five hundred six million, seventy-three thousand, eight in standard form?
(a) 516,073,008
(b) 506,073,008
(c) 506,111,0008
(d) 506,068,908

Question. Read the statement and choose the correct option.
Statement A : As per the place value system, multiplication is performed from left to right i.e. Highest place value to lowest place value).
Statement B : As per the place value system, division is performed from left to right i.e. Highest place value to lowest place value).
(a) Only A is true.
(b) Only B is true.
(c) Both A and B are true.
(d) Both A and B are false.

Question. What is the numeric form of the number given below?
“One hundred four thousand, one hundred three”
(a) 1,413
(b) 14,103
(c) 104,103
(d) 104,113

Question. 17422.16 in word form is
(a) seventeen thousand, four hundred, two, two and one tenths and six hundredths
(b) seventeen, four hundreds, twenty-two and sixteen hundredths
(c) seventeen thousand, four hundred, twenty-two and sixteen hundredths
(d) seventeen thousand, four hundred, twenty-two and sixteen tenths

Question. Estimate to the nearest hundred 496 plus 318.
(a) 814
(b) 800
(c) 178
(d) 700

Question. In the number 3.4625, the place value of the digit 2 is
(a) 1000
(b) 100
(c) 1/1000
(d) 1/100

Question. Complete the number sentence.
327,421 = 300,000 + 20,000 + ? + 400 + 20 + 1
(a) 70,000
(b) 700,000
(c) 7,000
(d) 700

vWhich of the following expressions does not describe the value of the digit 5 in the number 21.3572?
(a) 500 ten-thousandths
(b) 50 tenths
(c) 50 thousandths
(d) 5 hundredths

Question. Which of the following is correct? (2008, Tricky)
(a) Successor of predecessor of 1000 is 1001
(b) Successor of predecessor of 1000 is 1002
(c) Predecessor of successor of 1000 is 1000
(d) Predecessor of predecessor of 1000 is 999

Question. Choose an answer that has a digit in the hundreds place that has a greater value than the digit in the thousands place.
(a) 101,100
(b) 428,304
(c) 580,340
(d) 873,212

(a) Forty thousand nine hundred twenty eight
(b) Four lakh seven thousand nine hundred twenty eight
(c) Four lakh seventy nine thousand twenty eight
(d) Forty seven thousand nine hundred twenty eight

Question. 500 thousand + 600 hundred + 320 tens = ____________.
(a) 563200
(b) 5632000
(c) 5063200
(d) 5603200

Question. How do you write 240,004,395 in expanded notation?
(a) 200,000,000 + 40,000,000 + 4,000,000 + 300 + 90 + 5
(b) 200,000,000 + 40,000,000 + 4,000 + 300 + 90 + 5
(c) 200,000,000 + 40,000,000 + 4,000,000 + 300,000 + 90,000 + 5,000
(d) 200,000,000 + 40,000,000 + 300 + 90 + 5

Question. The number 5 crores 9 lakhs 4 thousands 9 hundred eighty-eight in numerals can be written as
(a) 59004988
(b) 590400988
(c) 509049088
(d) 50904988

Question. Sum of place values of 6 in 63606 is
(a) 6066
(b) 18
(c) 60606
(d) 6606

Question. In number 97580, when the digits 7 and 5 as interchanged its place, then the difference between the original and the new number is
(a) 1800
(b) 1080
(c) 1008
(d) 1000

Question. Place value and face value of a number is always equal at ________.
(a) One’s place
(b) Ten’s place
(c) Hundred’s place
(d) None of these

Question. What number am I?
• I am a two-digit even number.
• I am a common multiple of 6 and 7.
• I have a total of 8 factors.
(a) 35
(b) 42
(c) 36
(d) 84

Question. The sum of two numbers is 484. One of the numbers ends in a zero. If this zero is removed, we get the second number. The numbers are _______ and _______.
(a) 40, 444
(b) 4, 480
(c) 44, 440
(d) 84, 400

Question. The difference of 5671 and the number obtained on reversing its digits is
(a) 7436
(b) 3906
(c) 4906
(d) 3916

Question. Number of thousandths in 2 tenths is ____________.
(a) 20
(b) 200
(c) 2
(d) None of these

Question. Taking a number from 32 thousands gives 14 hundreds and 26 tens. The number is ____.
(a) 1660
(b) 30340
(c) 32000
(d) 33660

Question. In the given number 890436,if you write 0 in place of 4, by how much the resulting number be less than this given number?
(a) 40
(b) 400
(c) 436
(d) 36

Question. What is 650.287 rounded to the nearest tenth?
(a) 6050
(b) 6100
(c) 6050.29
(d) 6050.3'

Question. Write the following four numbers in descending order :
I. 4 2 0 3 5 6 7
II. 4 2 0 3 6 5 7

III. 4 2 0 3 7 5 6
IV. 4 2 0 3 6 7 5

(a) I, II, III, IV
(b) III, IV, II, I
(c) I, II, IV, III
(d) III, II, IV, I

Question. John spends 2.63 hours studying for Math, 6.37 hours studying for English and 0.4 hours studying for reading. How much total time does John spend studying?
(a) nine and four thousandth hours
(b) nine and four tenths hours
(c) nine and four hundredth hours
(d) nine hours

Question. Match the following numbers in list I with the corresponding place value of number 1.

 List I List II A 761,364 1 One hundred thousand B 13,486.3 2 One thousand C 1,234,567 3 One ten thousand D 3,143,064 4 One million

A      B     C     D
(a) 2      3      4      1
(b) 3      2      1      4
(c) 4      2      3      1
(d) 1      3      2      4

Question. Which list shows all the prime numbers between 0 and 22?
(a) 1, 3, 5, 7, 11, 13, 19
(b) 2, 3, 5, 7, 11, 13, 17, 19
(c) 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 21
(d) 1, 2, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21

Question. Find the greatest number which divides 36 and 84 leaving no remainder in each case.
(a) 6
(b) 9
(c) 12
(d) 18

Question. Ten thousands + ten ones + ten tens equals :
(a) 10110
(b) 11010
(c) 10011
(d) 101010

Question. Using all the given digits, form the greatest possible 7-digit even number, if repetition of digits is allowed.
9     3     0    8
(a) 9830000
(b) 9998830
(c) 9988330
(d) 9999830

Question. 1 billion = ______ crores.
(a) 1
(b) 10
(c) 100
(d) 1000

Question. Sum of divisors of 78 is _______.
(a) 168
(b) 170
(c) 167
(d) 189

Question. Gautam is thinking of a four digit number. (2014, Tricky)
• The fourth digit is thrice the first digit.
• The second digit is the second multiple of 2.
• The third digit is the smallest even number.
Find the number.
(a) 3426
(b) 6421
(c) 9423
(d) 3429

Question. Select the correct match.
(a) 897 - DCCXCVII
(b) 1234 - MCCXXIV
(c) 541 - CDXLI
(d) 547 - DXLVII

Question. The smallest ten digit number that has two digits the same is ____________.
(a) 1000000001
(b) 11000000000
(c) 1010000000
(d) 1000000010

Question. Hundred million = _____________.
(a) 10 crore
(b) 1 crore
(c) 100 crore
(d) 10 lakh

Question. I am an even number. You will find me if you count in 7s. I am less than 100. I am more than 80. Who am I?
(a) 72
(b) 84
(c) 96
(d) 82

Question. 15 hundreds multiplied by fifteen tenths multiplied by three fifteenths divided by forty five thousandths is equal to the successor of ____________.
(a) 999
(b) 9999
(c) 99999
(d) 14999

Question. What is the difference in the place value of the digits 8 and 6 in the numeral 8962321?
(a) 7994000
(b) 7904000
(c) 7960000
(d) 7940000

Question. Match the columns.
Column I       Column II
(i) 1524          (p) MMMDL
(ii) 3678         (q) MDXXIV
(iii) 2540        (r) MMMDCLXXVIII
(iv) 3550        (s) MMDXL
(a) (i) → (q), (ii) → (r), (iii) → (s), (iv) → (p)
(b) (i) → (p), (ii) → (s), (iii) → (r), (iv) → (q)
(c) (i) → (p), (ii) → (r), (iii) → (q), (iv) → (s)
(d) (i) → (q), (ii) → (p), (iii) → (s), (iv) → (r)

Question. ________ is equivalent of one lakh in International System of number.
(a) Hundred thousand
(b) Ten million
(c) One million
(d) Ten thousand

Question. Which of the following statements in INCORRECT?
(a) The place value of the digit '2' in the number 532689 is 200 times the number 10.
(b) The difference in place values of the digits '7' and '4' in the number 6734581 is 696000.
(c) In the number 8176942, the place value of the digit '1' is 50000 × 20.
(d) The place value of the digit '5' in the number 7538612 is 21869 more than 478131.

Question. Which of the following options hold?
Statement 1 : The value of CM – CD + CVII is 607.
Statement 2 : Symbol C can be added to every Roman Symbol. But it can be subtracted from D and M only.
(a) Statement 1 is true but statement 2 is false.
(b) Statement 1 is false but statement 2 is true.
(c) Both the statements are true.
(d) Both the statements are false.

Question. Which one of the following statements is true?
(a) All the even numbers are composite numbers.
(b) All the odd numbers are prime numbers.
(c) These are infinitely prime numbers.
(d) A prime number can be written as the product of more than two natural number

Directions (Qs. a to d) : In the given questions, identify the place value of 5. 7. 17,526,010
(a) five ten thousands
(b) five thousands
(c) five hundred thousands
(d) five hundreds

Question b. 2,110,735,000
(a) five thousands
(b) five hundreds
(c) five millions
(d) five ten thousands

Question c. 780,756
(a) five ones
(b) five tens
(c) five hundreds
(d) 5 tenth