RATIONAL NUMBER WORKSHEET CLASS 8 1

INDIAN SCHOOL MUSCAT – MIDDLE SECTION – DEPARTMENT OF MATHEMATICS – TERM:01 ( 2018 – 19 ) NAME OF THE STUDENT: DATE :20.04.2018

CLASS :8 SEC: TOPIC: RATIONAL NUMBERS

S.NO

1 2

Write the multiplicative inverse of the sum of

4 5 6 7

8

9

10 11 12 13 14

WORKSHEET NUMBER:01

QUESTIONS 5 4 Write the additive inverse of     6 21 

3

ROLL NO:

8 2 and . 3 15 3 4 Find the product of and the additive inverse of . 15 8 1 3 Show    on the number line. 4 2 1 1 Write four rational numbers between and 3 2  11  33 By what number should be divided to get ? 4 16 1 3 2 What should be subtracted from    to get ? 6 4 3 1  3 1    4 12   3 21  2 4 7 6     Simplify: a)  b) c)   ,    , ,  2  5 10   3  5   7 15   9 9   6 21  1  4 8   3 5 7 9 3  d)  e)             10  2 20   4 16    5 10   15  25    3 4   4 4  1 3 5 3 7      Simplify by using suitable property: i)  ii)       2 4 2 6  7 5 7 5 2 3 2 3 3 3 2 3 1 3 3  8 3 4 8  8 iii)  iv)  vi)              8 5 8 8 10 5 7 7 7 5  11 7   7 11  11  4 1 3 4  3 4 7 4 vi)                 9 5   5 9   10 9   5 9   14 5 The product of two rational numbers is .If one of them is , find the other number. 9 18  1 4  4   ? What should be added to   to get additive inverse of   5 3  15   5 7   3 1  What should be multiplied with    to get    ?  9 18  8 4   5 1 2 What should be added to   get multiplicative inverse of   ?  8   7 21   4 3  5 What should be should be subtracted from    to get additive inverse of  ? 8   9 4