I'm going to give you a practice one before you try it out on your friends. I chose 4 numbers. My sum is 72. Tell me what my 4 numbers are.
Some Month Some Year S M T W TH F S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Next: Check your answer.
URL http://math.rice.edu/~lanius/Lessons/calentry.html