Question

Write the following numbers in standard form.

(i) 0.000000564

(ii) 0.0000021

(iii) 21600000

(iv) 15240000​

Answer 1

The standard form of following numbers are:--

i)0.000000564

As it has 9 digits after decimal so we have :-

564*10^-9 or 5.64*10^-7

ii)0.0000021

The number has 7 digits after decimal so we have;-

21*10^-7 or 2.1*10*-6

iii)21600000

The number has 5 zeroes so

216*10^5 or 2.16*10^7

iv)15240000

As the number has 4 zeroes so we have:-

1524*10^4  or 1.524*10^7

Answer 2

Answer:

I) 5.64 * 10^-7

II) 2.1 * 10^-6

III) 2.16*10^7

IV) 1.524* 10^7