In this activity, we will practise **rounding** numbers to the nearest whole number and to 1, 2 and 3 decimal places.

Rounding numbers makes them easier to use, while keeping them close to the original number.

**Whole Number**

When we round to the nearest whole number, we look at the first decimal place. If it is 5 or above, we round up, if not we round down.

**23.4966 rounds to 23 to the nearest whole number.**

**1 dp**

When we round to 1 decimal place, we look at the second decimal place. If it is 5 or above, we round up.

**23.4966 rounds to 23.5 to 1 dp.**

**2 dps**

When we round to 2 decimal places, we look at the third decimal place. If it is 5 or above, we round up.

**23.4966 rounds to 23.50 to 2 dps.**

**3 dps**

When we round to 3 decimal places, we look at the fourth decimal place. If it is 5 or above, we round up.

**23.4963 rounds to 23.496 to 3 dps.**

All clear!

Let's try some questions now.