Question

Estimate 7372 * 39 by first rounding each number so that it has only 1 nonzero digit.

Answer 1

`280000`

Explanation:

Given the following question:

`7372*39`

To estimate by rounding each number so it only has one nonzero digit, we have to round the number that is the furthest on the left.

`7372*39`

`7372`

`3<5`

`7000`

`39`

`9>5`

`40`

`7000*40=280000`

`=280000`

Hope this helps.