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6th CBSE
IMPORTANT
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 All even numbers are composite numbers.

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Important Questions on Playing with Numbers

EASY
6th CBSE
IMPORTANT
MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.2>Q 4
The numbers 13 and 31 are prime numbers. Both these numbers have same digits 1 and 3. Find such pairs of prime numbers up to 100.
EASY
6th CBSE
IMPORTANT
MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.2>Q 5
What is the greatest prime number between 1 and 10?
EASY
6th CBSE
IMPORTANT
MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.2>Q 6

If 44 is expressed as the sum of two odd primes, write the smallest odd prime among all the possible combinations of odd primes.

EASY
6th CBSE
IMPORTANT
MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.2>Q 6
Express 36 as the sum of two odd primes.
EASY
6th CBSE
IMPORTANT
MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.2>Q 6

If 24 can be expressed as the sum of two odd primes, write the greatest odd prime among all the possible combinations of odd primes.

EASY
6th CBSE
IMPORTANT
MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.2>Q 6
Express 18 as the sum of two odd primes.
EASY
6th CBSE
IMPORTANT
MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.2>Q 7
Give three pairs of prime numbers whose difference is 2.
MEDIUM
6th CBSE
IMPORTANT
MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.2>Q 8
Which of the following numbers are prime?