How do you evaluate $99.3\times 92$ ?

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Answer 1 · 2016-12-19T21:36:51

$91356/10$ or $9 135.6$

We can start by rewriting these numbers as fractions.

$99.3 times 92 = 993/10 times 92/1$

Now we can multiply,

$((900 times 90 + 900 times 2) + (90times90 + 90 times 2) + (3 times 90 + 3times 2))/10$

$=((81000 + 1800) +(8100 + 180) +(270 + 6))/10$

$=(82800+8280+276)/10$

$=91356/10$

to write as a decimal we need to move the decimal point one place to the left, because the number is divided by a $10$ to the power one.

$91356/10 = 9135.6$

How do you evaluate 99.3\times 9299.3\times 92?