Rounding Calculator › round 42 to the nearest 10
Round 42 to the Nearest 10
42 rounded to the nearest ten = 40
| Rounded to nearest 10 | 40 |
| Rounded up | 50 |
| Rounded down | 40 |
Why 42 rounds to 40
42 sits between 40 and 50 on the number line. It is 2 above 40 and 8 below 50, so it is closer to 40.
The shortcut: look at the digit just right of the tens place — that deciding digit is 2. Since 2 is less than 5, you round down, 42 → 40. The halfway mark here is 45.
Round 42 to other place values
Round nearby numbers to the nearest 10
Frequently asked questions
What is 42 rounded to the nearest 10?
42 rounded to the nearest ten (10) is 40.
How do you round 42 to the nearest 10?
Look at the digit to the right of the tens place. Here 42 sits between 40 and 50; since it is closer to 40 (round-half-up), the answer is 40.