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### Number and algebra

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# Place Value, Integers, Ordering & Rounding

### Nice or Nasty

### Dicey Operations

### Legs Eleven

### How Many Miles to Go?

### Farey Sequences

### Difference Sudoku

### Place Your Orders

### Add to 200

### Forwards Add Backwards

### Number Lines in Disguise

### Place Value, Integers, Ordering and Rounding - Short Problems

### Subtraction Surprise

### More Less Is More

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Age 7 to 14

Challenge Level

There are nasty versions of this dice game but we'll start with the nice ones...

Age 11 to 14

Challenge Level

Who said that adding, subtracting, multiplying and dividing couldn't be fun?

Age 11 to 14

Challenge Level

Take any four digit number. Move the first digit to the end and move the rest along. Now add your two numbers. Did you get a multiple of 11?

Age 11 to 14

Challenge Level

How many more miles must the car travel before the numbers on the milometer and the trip meter contain the same digits in the same order?

Age 11 to 14

Challenge Level

There are lots of ideas to explore in these sequences of ordered fractions.

Age 14 to 16

Challenge Level

Use the differences to find the solution to this Sudoku.

Age 11 to 14

Challenge Level

Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?

Age 11 to 14

Challenge Level

By selecting digits for an addition grid, what targets can you make?

Age 11 to 14

Challenge Level

What happens when you add a three digit number to its reverse?

Age 7 to 14

Challenge Level

Some of the numbers have fallen off Becky's number line. Can you figure out what they were?

Age 11 to 16

A collection of short problems on place value, integers, ordering and rounding.

Age 7 to 14

Challenge Level

Try out some calculations. Are you surprised by the results?

Age 7 to 14

Challenge Level

In each of these games, you will need a little bit of luck, and your knowledge of place value to develop a winning strategy.