98 rounded to the nearest 10 is 100. Any number between 90-100 rounded to the nearest 10 would have to be 90 or 100. Anything between 90-94 rounds down to 90. Anything between 95-99 rounds up to 100.
29
100
99
100
9610
990
60
-98
It is then 740 when rounded to the nearest ten.
30
36,184 rounded to the nearest ten thousands place is 40,000.
2602 rounded to the nearest ten is 2600.
320
20
260