Question

Express the following in standard form(i) 0.00025 (ii) 0.25 (iii) 0.0000003

Answer 1

Hi ,

i ) 0.00025 = 25 /100000

= 25 / ( 10 × 10000 )

= 2.5 × 10^-4

ii ) 0.25 = 25 / 100

= 25 / ( 10 × 10 )

= 2.5 × 10^-1

iii ) 0.0000003

= 3 / 10000000

= 3 × 10 ^ -7

I hope this helps you.

:)