If you like to round 170.55 to the nearest tenth, leaving only one number after the decimal point, then you have come to the right post.
Our calculator rounds 170.55 to the nearest tenth applying the regular rounding rules as explained on our home page; if you explicitly wish to round up or down you can do so making your selection in the mode drop-down menu.
Next, we explain the rounding.
170.55 Rounded to the Nearest Tenth
To round 170.55 to the nearest tenth consider the hundredths’ value of 170.55, which is 5 and equal or more than 5. Therefore, the tenths value of 170.55 increases by 1 to 6.
The following table contains starting numbers close to 170.55 rounded to the nearest 10th.
| Number | Rounded to Nearest 10th |
|---|---|
| 170.55 | 170.6 |
| 170.65 | 170.7 |
| 170.75 | 170.8 |
| 170.85 | 170.9 |
| 170.95 | 171 |
| 171.05 | 171.1 |
| 171.15 | 171.2 |
| 171.25 | 171.3 |
| 171.35 | 171.4 |
| 171.45 | 171.5 |
Summary
In conclusion,
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170.557 to the nearest tenth. Where is the place value for the tenth place?
170.557 to the nearest tenth = 170.6, because the 2nd digit after the decimal point is 5, so the first digit after the decimal point (place value for the tenth place) is rounded up to 6.