préparé par René Ammann—adapté de http://www.makingmathmorefun.com/newsletter/Circle%20Pairs.pdf
46 50 37 60 53
40 25 20 12 20
28 10 61 30 74
70 26 30 49 20
12 40 57 50 18
How to play
Players take turns to cover 2 circles that are touching.
The circles must be beside each other or one above the other.
Players should add OR subtract the numbers covered.
The last player who can cover an adjoining circle pair is the winner.
préparé par René Ammann—adapté de http://www.makingmathmorefun.com/newsletter/Circle%20Pairs.pdf
How to play
Players take turns to cover 2 circles that are touching.
The circles must be beside each other or one above the other.
Players should add OR subtract the numbers covered.
The last player who can cover an adjoining circle pair is the winner.