Question

How do you solve `67,473-:32`?

Answer 1

`67473 -: 32 = 2108.53125`

Explanation:

Note that `32 = 2xx2xx2xx2xx2 = 2^5`

So one way of dividing by `32` is to divide by `2` five times:

`color(white)(-> )67473`
`-> 33736.5`
`-> 16868.25`
`-> color(white)(0)8434.125`
`-> color(white)(0)4217.0625`
`-> color(white)(0)2108.53125`

If all you want is an approximation, then note that `32 xx 3 = 96` is `4%` less than `100`, so you can multiply by `3`, divide by `100` and add `4%`...

`67473 xx 3 = 202419`

`202419 / 100 ~~ 2024`

`2024 * 4/100 ~~ 81`

`2024 + 81 = 2105`

...not too far off.