Question

What is `705470 -: 15010`?

Answer 1

`47`

Explanation:

To find an approximation while keeping the arithmetic a little easier, divide `705` by `15`:

`705 = 600 + 105 = (40*15) + (7*15) = 47*15`

So: `705/15 = 47`

To see how close we are, try:

`15010 * 47 = ((15*47)*1000) + (10*47) = 705000+470 = 705470`