# Rounding

**11**NRICH Mathematical resources connected to

**Rounding**

problem

### Reasoned Rounding

Four strategy dice games to consolidate pupils' understanding of rounding.

problem

### Round the Dice Decimals 1

Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?

problem

### Round the Three Dice

What happens when you round these three-digit numbers to the nearest 100?

problem

### Round the Dice Decimals 2

What happens when you round these numbers to the nearest whole number?

problem

### Round the Four Dice

This activity involves rounding four-digit numbers to the nearest thousand.

problem

### Antiques Roadshow

Last year, on the television programme Antiques Roadshow... work out the approximate profit.

problem

### Archimedes and numerical roots

The problem is how did Archimedes calculate the lengths of the sides of the polygons which needed him to be able to calculate square roots?

### Archimedes and numerical roots

The problem is how did Archimedes calculate the lengths of the sides of the polygons which needed him to be able to calculate square roots?