What number should be subtracted from to get ?

RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 1. Rational Numbers

Subject: Maths - Class 8^th

Q. No. 11 of Exercise 1.3

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11

What number should be subtracted from to get?

Suppose x be the rational number to be subtracted to to get

Then,

- x =

= -

-x =

-x =

x =

Therefore,

The required number x =

11

Chapter Exercises

Exercise 1.1

Exercise 1.2

Exercise 1.3

Exercise 1.4

Exercise 1.5

Exercise 1.6

Exercise 1.7

Exercise 1.8

1

Subtract the first rational number from the second in each of the following:
(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

2

Evalute each of the following:
(i) +

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

(ix)

(x)

(xi) -

3

The sum of the two numbers is . If one of the numbers is , find the other

4

The sum of two numbers is . If one of the numbers is , find the other

5

The sum of two numbers is . If one of the numbers is -5, find the other

6

The sum of two ratinal numbers is -8. If one of the numbers is , find the other

7

What should be added to so as to get ?

8

What number should be added to so as to get ?

9

What number should be addede to to get?

10

What number should be subtracted from to get ?

11

What number should be subtracted from to get?

12

What should be added to ( + ) to get?

13

What should be subtracted from ( + + ) to get 3?

14

What should be subtracted from ( - ) to get ?

15

Fill in the blanks:
(i) (ii)

(iii) (iv)