Question

Caroline packs 12 jars of jam in a box. She has 40 boxes. She has 542 jars of jam. How many jars of jam will she have left when all the boxes are full?

Answer 1

`62` left

Explanation:

First figure out how many jars the boxes can hold, then figure out how many extra she has.

She has `40` boxes that can hold `12` jars each, so the total number of jars that the boxes can hold are:

`40 xx 12 = 480` `"jars"`

But she has `542` jars, so how many will be left over? Subtract:

`542 - 480 = 62`

She will have `62` jars of jam left after all the boxes are full.