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# EX.13.3 Q3 Exponents-and-Powers Solutions- NCERT Maths class 7

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## Question

Express the following numbers in standard form:

(i)  $$5,00,00,000$$

(ii) $$70,00,000$$

(iii) $$3,18,65,00,000$$

(iv) $$3,90,878$$

(v)  $$39087.8$$

(vi) $$3908.78$$

Video Solution
Exponents And Powers
Ex 13.3 | Question 3

## Text Solution

Reasoning:

Standard form of numbers is used in case of large numbers. Large numbers can be expressed using exponents of $$10$$.

(i)

$$5,00,00,000= 5\times{{10}^7}$$

(ii)

$$70,00,000 = 7 \times {{10}^6}$$

(iii)

$$3,18,65,00,000= 3.1865 \times {{10}^9}$$

(iv)

$$3,90,878= 3.90878 \times {{10}^5}$$

(v)

$$39087.8= 3.90878 \times {{10}^4}$$

(vi)

$$3908.78= 3.90878 \times {{10}^3}$$

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