# Ex 2.6 Q3 Fractions-and-Decimals-Solutions NCERT Maths Class 7

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## Question

Find:

i) $$1.3 × 10$$

ii) $$\rm{}36.8 × 10$$

iii) $$\rm{}153.7× 10$$

iv) $$\rm{}168.07 × 10$$

v) $$\rm{}31.1×100$$

vi) $$\rm{}156.1 × 100$$

vii) $$\rm{}3.62 × 100$$

viii) $$\rm{}43.07 × 100$$

ix) $$\rm{}0.5 × 10$$

x) $$\rm{}0.08 × 10$$

xi) $$\rm{}0.9 ×100$$

xii) $$\rm{}0.03 × 1000$$

Video Solution
Fractions And Decimals
Ex 2.6 | Question 3

## Text Solution

What is known?

One decimal number and one whole number.

What is unknown?

Product of these numbers.

Reasoning:

We know that when a number is multiplied by $$10, 100$$ or $$1000$$ the digits in the products are same as in the decimal number but, the decimal point in the product is shifted to the right by as many places as there are zeros.

Steps:

i) $$1.3 × 10 =13 .0$$

ii) $$\rm{}36.8 × 10 = 368 .0$$

iii) $$\rm{}153.7× 10 = \rm{}1537.0$$

iv) $$\rm{}168.07 × 10 = \rm{}1680.7$$

v) $$\rm{}31.1×100 = \rm{}3110.0$$

vi) $$\rm{}156.1 × 100 = \rm{}15610.0$$

vii) $$\rm{}3.62 × 100 = \rm{}362.0$$

viii) $$\rm{}43.07 × 100 = \rm{}4307.0$$

ix) $$\rm{}0.5 × 10 =\rm{} 5.0$$

x) $$\rm{}0.08 × 10 = \rm{}0.8$$

xi) $$\rm{}0.9 ×100 = \rm{}90.0$$

xii) $$\rm{}0.03 × 1000 =\rm{} 30.0$$

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