Class 6 Maths: Playing with Numbers (Set 1)

Question 1

______ is a factor of every number.

Accepted Answer

1

Answer

0

Answer

Number itself

Answer

Less

Question 2

Name the numbers which are not divisible by 2.

Accepted Answer

odd

Answer

even

Answer

composite

Answer

factor

Question 3

Which of the following is a true statement?

Accepted Answer

even number + 1 = odd number

Answer

1 is prime number

Answer

even number + even number = odd number

Answer

5 is the smallest even prime number

Question 4

Find HCF of 30,105 and 165.

Accepted Answer

15

Answer

10

Answer

3

Answer

20

Question 5

The successor of an odd number is an ______ number.

Accepted Answer

even

Answer

odd

Answer

composite

Answer

none of these

Question 6

Find the HCF of 2 consecutive even numbers.

Accepted Answer

2

Answer

odd

Answer

3

Answer

None of these

Question 7

What is the index number in $7^8$?

Accepted Answer

8

Answer

7

Answer

56

Answer

1

Question 8

What is the prime factorization of 54?

Accepted Answer

$2 × 3^3$

Answer

$2 × 4^3$

Answer

$3 × 3^3$

Answer

None of these

Question 9

Express 32 as a product of prime factors.

Accepted Answer

$2^5$

Answer

$2^4$

Answer

$2^3$

Answer

$2^6$

Question 10

What is the HCF of 345, 506 by long division method?

Accepted Answer

23

Answer

27

Answer

24

Answer

None of these

CHAPTER-3 PLAYING WITH NUMBERS (SET-1)

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