Rounding numbers, step by step
Rounding trades an exact number for a nearby friendly one — the skill behind every quick estimate.
The question
867 to the nearest ten
867
867
867
860or870?
867
867→870
- Find the tens digit first — that is the one that might change.
- Now look at the single digit just after it: 7. Nothing further along matters at all.
- 7 is 5 or more, so 867 is nearer 870 than 860. It rounds up.
- So 867 to the nearest ten is 870.
How it works.
- 01
Find the tens digit first — that is the one that might change.
- 02
Now look at the single digit just after it: 7. Nothing further along matters at all.
- 03
7 is 5 or more, so 867 is nearer 870 than 860. It rounds up.
- 04
So 867 to the nearest ten is 870.