How do you multiply $10.4\times 4.6$ ?

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Answer 1 · 2017-02-08T15:55:27

$10.4times4.6=47.84$

First notice

$10.4times4.6=(1/10times104)times(1/10times46)$

Then we can group the $1/10$ s together

$(1/10times104)times(1/10times46)=(1/10times1/10)times(104times46)$

$=1/100times(104times46)$

Since $104=100+4$ then

$1/100times(104times46)=1/100times((100+4)times46)$

Then we distribute $46$

$=1/100times((100times46)+(4times46))$

And multiply

$=1/100times(4600+184)=1/100times4784=47.84$

How do you multiply 10.4\times 4.610.4\times 4.6?