How do you write $(3 times 10^4) + (6 times 10^3)$ in standard form?

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Answer 1 · 2015-10-18T11:32:58

$36000$ .

Just expand the powers of ten, noting that $10^k$ is simply a one followed by $k$ zeroes.

So, $10^4=10000$ , and $10^3=1000$ .

This means that $3*10^4=3*10000=30000$ , and
$6*10^3 = 6*1000 = 6000$ .

Finally,

$30000+6000=36000$ .

How do you write (3 times 10^4) + (6 times 10^3)(3 times 10^4) + (6 times 10^3) in standard form?