Answer:
20,000
Step-by-step 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
