Write the following numbers in the usual form:(i) 4.83 × 107(ii) 3.2

1.	Write the following numbers in the usual form:(i) 4.83 × 107(ii) 3.21 × 105(iii) 3.5 × 103
Answer» (i) Given 4.83 × 10⁷ 4.83 × 10⁷ = 483 × 10^7-2 [since the decimal point is moved two places to the right] = 483 × 10⁵ = 4, 83, 00,000 (ii) Given 3.21 × 10⁵ 3.21 × 10⁵= 321 x 10^5-2 [since the decimal point is moved two places to the right] = 321 x 10³ = 3, 21,000 (iii) Given 3.5 × 10³ 3.5 × 10³ = 35 x 10^3-1 [since the decimal point is moved one place to the right] = 35 x 10² = 3,500

Write the following numbers in the usual form:(i) 4.83 × 107(ii) 3.21 × 105(iii) 3.5 × 103

Answer»

(i) Given 4.83 × 10⁷

4.83 × 10⁷ = 483 × 10^7-2 [since the decimal point is moved two places to the right]

= 483 × 10⁵

= 4, 83, 00,000

(ii) Given 3.21 × 10⁵

3.21 × 10⁵= 321 x 10^5-2 [since the decimal point is moved two places to the right]
= 321 x 10³

= 3, 21,000

(iii) Given 3.5 × 10³

3.5 × 10³ = 35 x 10^3-1 [since the decimal point is moved one place to the right]

= 35 x 10²

= 3,500