AP State Syllabus AP Board 7th Class Maths Solutions Chapter 1 Integers Ex 3 Textbook Questions and Answers.

## AP State Syllabus 7th Class Maths Solutions 1st Lesson Integers Exercise 3

Question 1.

Represent the following subtractions on the number line.

(i) 7 – 2

(ii) 8 – ( – 7)

(iii) 3 – 7

(iv) 1 5 – 14

(v) 5 – ( – 8)

(vi) ( – 2) – ( – 1)

Solution:

(i) 7 – 2 = 5

(ii) 8 – ( – 7) = 15

(iii) 3 – 7 = -4

(iv) 1 5 – 14 = 1

(v) 5 – ( – 8) = 13

(vi) ( – 2) – ( – 1) = -2 + 1 = -1

Question 2.

Solve the following.

(i) 17 – ( – 14)

(ii) 13 – ( – 8)

(iii) 19 – ( – 5)

(iv) 15 – 28

(v) 25 – 33

(vi) 80 – ( – 50)

(vii) 150 – 75

(viii) 32 – ( – 18)

Solution:

(i) 17 – ( – 14) = 31

(ii) 13 – ( – 8) = 21

(iii) 19 – ( – 5) = 24

(iv) 15 – 28 = -13

(v) 25 – 33 = -8

(vi) 80 – ( – 50) = 130

(vii) 150 – 75 = 75

(viii) 32 – ( – 18) = 50

Question 3.

Express ‘ – 6’ as the difference between a negative integer and a whole number.

Solution:

– 6=( – 4) – (2) ( – 5) – (1)=( – 2) – (4)