NCERT Class 8 Solutions: Rational Numbers (Chapter 1) Exercise 1.1 – Part 1

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Given the propertys of tell about operations on real numbers and using appropriate property find in all equations

Given the Propertys of Tell About Operations on Real Numbers

Given the propertys of tell about operations on real numbers and using appropriate property find in all equations

Q-1 Using appropriate properties find:

  1. 23×35+5235×16

    =23×3535×16+52 (By commutativity)

    =35(2316)+52

    =35((41)6)+52

    =35(56)+52 (By distributive)

    =1530+52

    =12+52

    =1+52

    =42

    =2

  2. 25×(37)16×32+114×25

    =25×(37)+114×25(16×32) (By commutativity)

    =25×(37+114)14

    =25×(6+114)14 (By distributive)

    =25×(514)14

    =1714

    =4728

    =1128

Q-2 Write the additive in inverse of each of the following.

  1. 28

  2. 59

  3. 65

  4. 29

  5. 196

Solution:

Image describingt the additive inverse as jumping around zero

Additive Inverse as a Reflection Around 0

Image describingt the additive inverse as jumping around zero

  1. 28

    Additiveinverse=28

  2. 59

    Additiveinverse=59

  3. 65=65

    Additiveinverse=65

  4. 29=29

    Additiveinverse=29

  5. 196=196

    Additiveinverse=196

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