SOLUTION: How do I round 0.00000226 to the nearest tenth,hundred ,thousand?

You can put this solution on YOUR website!
They are all zero.
To round to ten look at the hundreths digit.
If it is >=5 round up; if it is <5 round down.
For example
0.36 rounds to 0.4
But 0.33 rounds to 0.3
In your number you have 0 to the right of tenths, hundreths, and
thousanths; so they all round out to zero.
Cheers,
Stan H.