Question

Write the following numbers in the standard form :

• A. $4,12,57,00,000$
• B. 319$\times 10$${}^8$
• C. 54601$\times 10$${}^6$
• D. 24,000,000,000
• E. 9540689

Answer 1

The correct option is A $4,12,57,00,000$

For the standard form notation,

only one number is kept before the decimal point and

rest all numbers are written after the decimal point.

The power of 10 denotes the number of terms shifted after the decimal point.

So for $4,12,57,00,000$

$=4,12,57,00,000\times \frac{1,00,00,00,000}{1,00,00,00,000}$

$=4.1257\times {10}^9$