MEDIUM
7th CBSE
IMPORTANT
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The multiplicative inverse of zero does not exist.

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Important Questions on Number Systems

EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 2
Division by zero is not defined.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 3
Division is commutative for integers.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 4
The sum of any two proper fractions is an improper fraction.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 5
The product of a proper and an improper fraction is less than the improper fraction.
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Mathematics>Chapter 1 - Number Systems>PRACTICE QUESTIONS (COMPETITION WING)>Q 6
What is the additive identity element in the set of whole numbers?
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.