Question

When a number ends in 5 and needs to be rounded to meet sig figs, what should you do?

1) Round up to the nearest even number
2) Round down to the nearest even number
3) Round up to the nearest odd number
4) Round down to the nearest odd number

Answer 1

When a number ends in 5 and requires rounding to a specified number of significant figures:

1) It's rounded up to the nearest even number.

This is a common rounding convention known as "rounding to even" or "rounding to the nearest even number."

Answer 2

When a number ends in 5 and needs to be rounded to meet sig figs, you should round up to the nearest odd number.

Step-by-step explanation:

When rounding a number that ends in 5, you should round up to the nearest odd number. This means that if the digit to the right of the last significant digit is 5, you round up if the last significant digit is odd. If the last significant digit is even, you round down. For example, if you have a number like 15, when rounding to meet significant figures, you would round it up to 20 because the last significant digit is odd.