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# 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

**Solution:**

Standard form of numbers is used to express very large and small numbers.

Large numbers can be expressed using exponents of 10.

(i) 5,00,00,000

= 5 × 10^{7}

(ii) 70,00,000

= 7 × 10^{6}

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

= 3.1865 × 10^{9}

(iv) 3,90,878

= 3.90878 × 10^{5}

(v) 39087.8

= 3.90878 × 10^{4}

(vi) 3908.78

= 3.90878 × 10^{3}

**☛ Check: **NCERT Solutions for Class 7 Maths Chapter 13

**Video Solution:**

## 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

Maths NCERT Solutions Class 7 Chapter 13 Exercise 13.3 Question 3

**Summary:**

The following numbers are expressed in the standard form: (i) 5,00,00,000 = 5 × 10^{7} (ii) 70,00,000 = = 7 × 10^{6} (iii) 3,18,65,00,000 = 3.1865 × 10^{9} (iv) 3,90,878 = 3.90878 × 10^{5 }(v) 39087.8 = 3.90878 × 10^{4} (vi) 3908.78 = 3.90878 × 10^{3}

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