Question

How do you solve `$95.69\times 9`?

Answer 1

I am guessing that the decimal is giving you a problem. This is a sort of cheat.

$861.21

Explanation:

We can change the way that `95.69` looks as long as we include a correction that takes it back to the original value.

We can choose when to apply that correction. I am going to do so at the very end.

Don't like decimals so lets get rid of it.

`95.69` is the same as

`color(green)(9569)color(red)(xx1/100 larr" The correction")`

So consider just:

`color(white)("dd") color(green)(9color(white)(.)5color(white)(.)6color(white)(.)9)`
`ul(color(green)(color(white)("ddddddd.") 9larr" Multiply"))`
`color(green)(ul(color(white)() 8color(white)(.)6color(white)(.)1color(white)(.)2color(white)(.)1color(white)("ddddddddddd")))`
`color(white)("d.")5color(white)(.)6color(white)(.) 8 larr" Caried values"`

Now we apply the correction:

`color(green)(86121color(red)(xx1/100) =861.21`

But we are counting in dollars giving:

`color(green)( $861.21 )`