NumberClack!

Takes turns placing number pieces around the outside of the circle and firing them towards the centre. Then select groups of touching (or close enough!) pieces which add up to a multiple of the factor. The points you score grow exponentially with the number of pieces you select. 2 pieces is 1 point, 3 pieces is 2, 4 pieces is 4, 5 pieces is 8 and so on.  

Detailed Instructions

1. Select the factor (try 10 to start), the number of rounds you want to play to, and the difficulty (this changes how big the numbers on the balls can be). Then click play to begin!

2. Click to place your ball around the outside of the circle

3. Click behind the ball to hit in the direction of the arrow. The longer the arrow, the harder you will hit the ball.

4. Score points by clicking touching balls which add up to the factor, or a multiple. For example, for a factor of 10, they could add up to 10, 20, 30 and so on. For every extra ball you can select your score doubles. If there is nothing touching which adds up, just hit skip!

7. When you are happy with your selection click submit to get your points. Or click skip if you can't see anything that adds up. It's now your opponents go!

8. The game finishes after the number of rounds you selected at the start. The person with the highest score wins!

Difficulty setting:

1 - Numbers up to 9

2 - Numbers up to 20

3 - Numbers up 50

4 - Numbers up to 99