Composite Mathematics For Class 8 Solutions Chapter 1
Mamta mund founder-owner of maths grade
In Mathematics, numbers play a vital role. In everyday life also numbers play a big role. In the early days, people count herds using stone or sticks. They improved by using finger counting. Then after they give the numbers as a name that is zero(0) for nothing, one object for digit 1, and so on…
Numbers are of different types
- Counting numbers (Natural numbers)- The numbers that used for counting are known as counting or natural numbers.
Ex- 1, 2,3,………….
2. Whole Numbers- consists of natural numbers and 0. The whole number starts with zero(0).
Ex- 0,1,2,3,………….
3. Integers- Integers are positive and Negative.
Positive integers are having a plus sign.
Ex- 1,2,3….
Negative Integers are having a minus sign.
Ex- -1,-2,-3,…………
Rational Number- it is of the form
Positive Rational Number- If the Numerator and denominator of a rational number are of the equal sign, then it is a positive rational number.
Negative Rational Number- If the Numerator and denominator of a rational number are of a different sign, then it is a negative rational number.
Composite Mathematics Class 8 Chapter 1
v) The rational number which is neither positive nor negative is …………….
Solution- Zero is neither positive nor negative
2. Answer True(T) or False (F).
i)Every rational number is a whole number.
Solution- False as 2=2/1 is a whole number but 1/2 is not a whole number.
ii) 0 is the smallest rational number.
Solution- No as the negative rational number is less than zero.
iii) Every fractional number is a rational number.
Solution- Yes
But the rational number is not a fractional number as a negative rational number is not a fractional number
Comparison Of Rational Numbers
iv) 0……….(-3)/(-8)
Solution- we know zero is always less than every positive rational number
And zero is less than every negative rational number.
Absolute Value Of a Rational Number
Ordering of Rational numbers
Composite Mathematics Class 8 Solutions Pdf
Want to Learn Vedic Maths Tricks
Properties of Addition Of RationalNumbers
- Closure Property-
2. Commutative Property-
3. Associative Property-
4. Additive Identity-
5. Additive Inverse -
Properties Of Subtraction of Rational Numbers
- Closure Property-
2. Commutative Property-
3. Associative Property -
SK Gupta Anubhuti Gangal Class 8 Solutions
v) While Subtracting three or more rational numbers, they can be grouped in any order.
Solution- False As Subtraction is not associative in Rational number.
Addition of Rational numbers
Composite Mathematics For Class 8 Pdf Free Download
Self Practice 1(C)
Division of Rational Numbers
Composite Mathematics Class 8 Chapter 1
Find Rational Numbers Between two given rational numbers
9. Answer True or false
a) Between any two distinct integers there is always an integer
Solution- true
b) Between any two distinct rational numbers, there is always a rational number.
Solution- True
c) Between any two distinct rational numbers, there are infinitely many rational numbers.
Solution- True
Composite Mathematics for Class 8 by SK Gupta Solutions
Word Problems On Rational Numbers
Composite Mathematics for Class 8 Teacher’s Guide Pdf
Mental maths Questions Answers
Composite Mathematics for Class 8 By SK Gupta Solutions
Chapter Test Questions
Want to learn more fast maths Tricks
please follow this blog for more textbook solutions on CBSE, ICSE, STATE syllabus, Composite Mathematics, New Learning Composite Mathematics solution
