To find the numbers that round to 40 when rounded to the nearest ten, we need to consider the range of numbers that round to 40. The numbers that round to 40 when rounding to the nearest ten are those between 35 and 44 (inclusive).
From the list provided, the numbers that fall within this range are:
- 38
- 42
- 41
So the three numbers that round to 40 when rounded to the nearest ten are 38, 42, and 41.