CBSE Class 6 Mathematics Playing with Numbers Assignments Set 01

Question. Rehana says, The students of my class can be divided exactly into groups of five, as well as groups of six, as well  as groups of ten". The number of children in Rehana's class could be"
(a) 25
(b) 30
(c) 36
(d) 50

Answer : B

Question. ALL the multiples of an odd number (other than itself) are always
(a) odd
(b) even
(c) prime
(d) composite

Answer : D

Question. Which of the following could be a factor of a prime number?
(a) 1
(b) 4
(c) 9
(d) 15

Answer : A

Question. Rani has three tops, two pairs of jeans and two pairs of shoes. Totally, in how many different ways can she choose and combine one top, one pair of jeans and one pair of shoes to wear for a party? (For example: one possible way would be to combine the white top, blue jeans and brown shoes)

(a) 6
(b) 7
(c) 22
(d) 25

Answer : C

Question. A certain number is a multiple of 4. Which of the following MUST be a factor of this number?
(a) 16
(b) 8
(c) 6
(d) 2

Answer : D

Question. A 30-second advertisement for a new product is aired on T.V. every day for the month of June and on alternate days for the next 3 months. For how much time in all was it played in the four months?
(a) 28 minutes
(b) 38 minutes
(c) 48 minutes
(d) 61 minutes

Answer : B

Question. Which of the following is greater than 10?(a) 

Answer : B

A cricket covers a distance of 6 cm with every jump and a grasshopper covers a distance of 8 cm with every jump. They start at one end of a 24-metre long balcony and keep jumping Question. straight ahead till they reach the other end. How many more times did the cricket jump than the grasshopper?
(a) 1
(b) 2
(c) 20
(d) 100 

Answer : D

Question. According to the logic followed by the numbers in the following sequence, what is the missing number?

(a) 45
(b) 53
(c) 54
(d) 42

Answer : B

Question. Count the TOTAL number of squares in this figure.

(a) 24
(b) 36
(c) 40
(d) 56

Answer : C

Question. Which angle in the figure measures about135&deg ?

(a) A
(b) B
(c) C
(d) D

Answer : B

Question. Chintu has some coloured counters of different shapes which he has placed on a board. One counter is placed on each small square as shown:
How many counters on the board are RED RECTANGULAR and BLUE CIRCULAR ones?

(a) 3
(b) 5
(c) 6
(d) 12

Answer : B

Question. In which figure will the set of lines meet at ONE single point if extended?

Answer : C

Question. How many triangles are there (of any size) in the figure shown
(a) 9
(b) 10
(c) 13
(d) 14

Answer : C

Question. Astronomers discover a new planet which has three moons. The time that each one takes to complete one full revolution around the planet is shown in the figure.
If they are in the position shown above at this moment, after how many days will the three of them again be exactly in the same position next?

(a) 120
(b) 60
(c) 2
(d) 10

Answer : C

Question. Between 1 and 50 (excluding both these) how many numbers are there which will leave a remainder 1 when divided by 4?
(a) 10
(b) 12
(c) 13
(d) 15

Answer : B

Question. If we multiply 2 prime numbers, the product will ALWAYS be
(a) a composite number.
(b) an even number.
(c) an odd number.
(d) a prime number.

Answer : A

Question. 24 can be expressed as the product of two numbers in 4 different ways:  24 x 1, 12 x 2 , 8 x 3 and 4 x 6. In how many different ways can 42 be expressed as a product of two numbers?
(a) 3
(b) 4
(c) 5
(d) 6

Answer : B

Question. In a magic square, the sum of the four numbers in every row, column and diagonal are the same. The figure shown is an incomplete 4 x 4 magic square. Which number will come in place of ? 

(a) 13
(b) 9
(c) 8
(d) 7

Answer : B

Question. The smallest positive number which is a multiple of both 40 and 50 is
(a) 10
(b) 200
(c) 400
(d) 2000

Answer : B

Question. A school has less than 500 students. The total number of students can be divided into 3 equal sized groups, 4 equal sized groups, 5 equal sized groups or 7 equal sized groups. How many students does the school have?
(a) 280
(b) 420
(c) 480
(d) Can't say - many answers possible

Answer : B

Question. Which of the following is an odd number?
(a) The product of an odd number and an even number
(b) The difference of two odd numbers
(c) The sum of an odd number and two even numbers
(d) The sum of an even number and two odd numbers

Answer : C

Question. Which of these sets will have the fewest members?
(a) Numbers divisible by 1
(b) Numbers divisible by 5
(c) Multiples of 10
(d) Factors of 1000

Answer : D

Question. Which is the LARGEST 3-digit number that leaves a remainder 1 when divided by 3, 4 and 5?
(a) 999
(b) 961
(c) 181
(d) 61

Answer : B

Question. A number that has 2 and 37 as factors must be an
(a) even composite number
(b) odd composite number
(c) odd prime number
(d) even prime number

Answer : A

Question. Which is the largest EVEN number less than 10,00,000 that can be made using as many of the number cards shown here as necessary?

(a) 97634
(b) 976431
(c) 973164
(d) 976314

Answer : D

Question. 654312 and 76536 are both divisible by 8. Which of the following might NOT be divisible by 8?
(a) 654312 +76536
(b) 654312 -76536
(c) 654312 x 76536
(d) 654312 ÷ 76536

Answer : D

Question. What is the largest number between 100 and 200 that is divisible by both 20 and 30?
(a) 600
(b) 180
(c) 150
(d) 120

Answer : B

Question. Which of the following is a prime number?
(a) 19 x 2 x 3
(b) 1 x 29
(c) 21 x 1
(d) 13 x 17

Answer : B

1. Fill in the blank

i) _____________ is a factor of every number.

ii) Only even prime number is ___________.

iii) If sum of digits of a number is divisible by 9 then number is divided by _______.

2. Match the following

i) A number which is exactly divisble by 2                                    odd numbers

ii) A number which is not exactly divisible by 2                             even numbers

iii) A natural number greater then 1 which has no                          prime numbers 

factors except 1 and itself.

3. Put ( ) on correct answer.

i) The smallest prime number is

a) 1    b) 2    c) 3    d) -1

ii) Which of these number is divisible by 2, 10, 5.

a) 3240   b) 6215   c) 8102   d) 2341

iii) HCF of 11 and 77 is

a) 11   b) 77    c) 7   d) 1

4. Write first five multiples of 8.

5. LCM of 7 and 8 is _________ .

6. HCF of two consecative numbers is __________ .

7. Complete the factor tree