How do you round 407 to the nearest ten?

To round a number, look at the digit to the right of the place you want to round to. If it is 5 or more, change the digit in the place you're rounding to to the next higher digit. If the digit to the right of the place you're rounding to is less than 5, leave the digit in the place you are rounding to as it is. Change all digits to the right of the place you are rounding to to zeros.

407 rounded to the nearest ten is 410.