### Special Numbers

My two digit number is special because adding the sum of its digits to the product of its digits gives me my original number. What could my number be?

### Your Number Is...

Think of a number... follow the machine's instructions. I know what your number is! Can you explain how I know?

### First Forward Into Logo 6: Variables and Procedures

Learn to write procedures and build them into Logo programs. Learn to use variables.

# Shape Products

##### Stage: 3 Challenge Level:

The coloured shapes stand for eleven of the numbers from $0$ to $12$. Each shape is a different number.

Can you work out what they are from the multiplications below?

 A B C D E F G H

If you need some more clues, click below to reveal four more multiplications:

 I J K L

Extension
Once you have worked out the value of each shape above, take a look at the two multiplications below:

Can you work out the value of the shapes in each product?

The initial activity has been adapted from the hands-on Brain Buster Maths Boxes, developed by members of the NRICH Team and produced by BEAM.