Thousandths 1

This 12-question quiz takes decimal addition all the way out to three places, the thousandths.

You will add values such as 0.025 + 0.079 = ? and 0.575 + 0.123 = ?, with a few true or false checks at the end.

With three decimal places there is more room for a carry to ripple across columns, so it helps to add slowly from right to left.

A nice surprise is that several of these sums tip just over 1, a good reminder that small numbers can still add up to more than a whole.

Recommended level: intermediate.