EASY
7th CBSE
IMPORTANT
Earn 100

What is the additive identity element in the set of whole numbers?

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Important Questions on Number Systems

MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 7
Which of the following is/are true?
HARD
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 8
M and N are two co-primes. Which of the following is/ are true?
HARD
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 9
If a=(-1)2009 and b=(-1)2010, then find the value of ab.
HARD
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 10
X is a perfect square. Which of the following is/are true?
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 11
1252163-2536= _____.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 12
The HCF of two numbers is 6 and the product of two numbers is 360. Find the LCM of the numbers.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 13
If M and N are two natural numbers, then LCM(M,N)HCF(M,N) is
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 14
X is the smallest four-digit number formed by all the digits 0, 1, 2 and 3. Find X.