Numbers with one decimal place have one digit after the decimal point.

To **round** one of these numbers to the nearest whole number, think of a number line.

Remember that halfway numbers such as 7.5 or 8.5 or 14.5 always round UP.

Numbers ending in 1, 2, 3 and 4 round **DOWN**.

Numbers above this, such as 5, 6, 7, 8 and 9 round **UP**.

**Example 1**

Round 12.3 to the nearest whole number.

**Answer**

12.3 is between 12 and 13 and is closer to 12.

12.3 rounds down to **12**.

**Example 2**

Round 10.8 to the nearest whole number.

**Answer**

10.8 is between 10 and 11 and is closer to 11.

10.8 rounds up to **11**.

**Example 3**

Round 16.5 to the nearest whole number.

**Answer**

16.5 is halfway between 16 and 17 and so we round up.

16.5 rounds up to **17**.