Rounding to the nearest ten in standard form

Question

Rhode island has about three hundred fifty-six thousand acres forested land. What is this number in standard form rounded to the nearest ten thousand?

A 350,000

B 400,000

C 360,000

D 356,000

Answer 1

The ten thousand digit is the fifth one to the left of the decimal point.

356,000

3 = hundred thousands digit

5 = ten thousands digit

6= thousands digit

0 = hundreds digit

0 = tens digit

0 = ones digit

To round to the nearest ten thousand, we go one unit to the right (the thousands digit).

Because the thousands digit is 6, we round up the ten thousands digit from 5 to 6. (5-9 round up, 0-4 round down)

So the correct answer is C) 360,000

If it were 354,000 then the answer would be 350,000.

Answer 2

360,000 is the answer (C).