Find:  (i) 0.2 × 6   (ii) 8 × 4.6   (iii) 2.71 × 5   (iv) 20.1 × 4
(v) 0.05 × 7   (vi) 211.02 × 4   (vii) 2 × 0.86

Solution:

We use the basic concepts of decimals and multiplication to solve the problem.

(i) 0.2 × 6 = 2/10 × 6

0.2 × 6 = 12/10

0.2 × 6 = 1.2

(ii) 8 × 4.6 = 8 × 46/10

8 × 4.6 = 368/10

8 × 4.6 = 36.8

(iii) 2.71 × 5 = 271/100 × 5

2.71 × 5 = 1355/100

2.71 × 5 = 13.55

(iv) 20.1 × 4 = 201/10 × 4

20.1 × 4 = 804/10

20.1 × 4 = 80.4

(v) 0.05 × 7 = 5/100 × 7

0.05 × 7 = 35/100

0.05 × 7 = 0.35

(vi) 211.02 × 4 = 21102/100 × 4

211.02 × 4 = 84408/100

211.02 × 4 = 844.08

(vii) 2 × 0.86 = 2/1 × 86/100

2 × 0.86 = 172/100

2 × 0.86 = 1.72

☛ Check: NCERT Solutions for Class 7 Maths Chapter 2

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Video Solution:

Find: (i) 0.2 × 6 (ii) 8 × 4.6 (iii) 2.71 × 5 (iv) 20.1 × 4 (v) 0.05 × 7 (vi) 211.02 × 4 (vii) 2 × 0.86

NCERT Solutions Class 7 Maths Chapter 2 Exercise 2.6 Question 1

Summary:

The value of the following: (i) 0.2 × 6 (ii) 8 × 4.6 (iii) 2.71 × 5 (iv) 20.1 × 4 (v) 0.05 × 7 (vi) 211.02 × 4 (vii) 2 × 0.86 are i) 1.2, ii) 36.8, iii) 13.55, iv) 80.4, v) 0.35, vi) 844.08 and vii) 1.72 respectively.

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