Question

write in standard form
a. 123456
b. 72 crore
​

Answer 1

Answer:

$\huge\underbrace\mathcal\blue{Answer}$

a. 1.23456

b. 7.2 × 10^7

Answer 2

Answer:

a ) 1.23456 * 10⁵

b ) 7.2 * 10⁸

Explanation of b ) 72 crore

Let us first understand the number of zeroes in a crore,

One lakh = 1, 00,000

Number of zeroes = 5

Ten Lakhs = 10, 00, 000

Number of zeroes = 6

One crore = 1, 00, 00, 000

Number of zeroes = 7

Ten crore = 10, 00, 00, 000

Number of zeroes = 8

Therefore 72 crore = 72, 00, 00, 000

Number of zeroes = 7

Number of terms to be shifted after decimal point = 8

$72,00,00,000 = \frac{72,00,00,000}{10,00,00,000} \times 10,00,00,000$

72, 00, 00, 000 = 7.2 × 108