Question

Estimate the difference 68,283−47,849 by rounding each number to the nearest ten thousand.

Answer 1

20,000

Explanation:

ten thousands, thousands, hundreds, tens ones

We need to round each number to the nearest ten thousands

68,283

We look at the thousands term and if it is 5 or higher we round up

8 is five or higher so we round up

70,000

47,849

We look at the thousands term and if it is 5 or higher we round up

7 is five or higher so we round up

50,000

70.000-50,000=20,000