Add:
202
+57
259
To estimate to the nearest ten:
Look at the ones digit: 9.
9 is in the range of 5-9, so you round it up. So, you get 260.
To round to the hundreds, check the middle (tens) digit. The number is 5, so since it is in the 5-9 range, round it up. So, you get 300.
Exact answer: 259
Answer rounded to the nearest ten: 260
Answer rounded to the nearest hundred: 300
