Ncert Solutions For Class 6 Maths Ex 6.2

Ncert Solutions For Class 6 Maths Chapter 6 Ex 6.2

Q.1. Using number line, answer the following.

(i) 3 greater than 2

Ans.

29

Therefore, 5.

(ii) 5 greater than –2.

Ans.

30

Therefore, 3.

(iii) 6 less than 3

Ans.

31

Therefore, -3.

(iv) 3 less than -4

Ans.

32

Therefore, -7.

 

Q.2. Add the following integers in the number line.

(i) 10 + (-6)

Ans.

33

Therefore, 4.

(ii) 6 + ( -11)

Ans.

34

Therefore, -5.

(iii) (-4) + 10

Ans.

35

Therefore, 6.

(iv) (1) + (-7)

Ans.

36

Therefore, -6.

(v) (7) + (-2) + (-3)

Ans.

37

Therefore, 2.

(vi) (3) + (8) + (-4)

Ans.

38

Therefore, 7.

Q.3. Find the integer without using number line.

(i). 12 + (-5) = 7.

(ii). (-14) + (+19) =5.

(iii). (-11) + (+15) = 4.

(iv). (-350) + (+250) = -100.

(v). (-225) + (-150) = -375.

(vi). (-120) + (-100) = -220.

 

Q.4. Find the sum of:

(i) 140 and -240

Ans. 140 + (-240) = -100

(ii) -67 and 67

Ans. -67 + 67 = 0

(iii) – 122, 23 and 231

Ans. – 122 + 23 +231 = 132

(iv) -60, -250 and 300

Ans. – 60 – 250 + 300 = -10

 

Q.5. Find the sum of the following:

(i) (12) + (-21) + (34) + (-6).

(ii) (-32) + (43) + (-54) + (23).

Ans. (i) 12 + (-21) + 34 + (-6) = 19.

(ii) (-32) + 43 + (-54) + 23 = -20.