subtracting standard form

how to I subtract two numbers in standard form

for example:

1.898 x 10^27 - 5.68 x 10^26

Type them into your calculator - this always comes up on GCSE papers and that's what I do, hasn't failed me once

So 1.898 x 10^27 is the same as 18.98 x 10^26
Then subtract as usual :smile:

Original post by bluemuffin

So 1.898 x 10^27 is the same as 18.98 x 10^26
Then subtract as usual :smile:

Oh you clever clogs. This is probably why I prefer English lolol I can hardly do 2 plus 3 without a calculator

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