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tia
 
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Joined: Mar 2001
Posts: 7,632
Senior Member
cards or dice
Old 03-15-2006, 06:15 PM
 

have them get in pairs (opponents)
they should flip over one card or roll one die (that's the denominator)
then they should each flip over a card in their own stacks or their own dice--those are the numerators
whoever adds them together to get the simplified/reduced answer first, earns a point.

to subtract, have them determine which fraction is the larger and then subtract the other one from it.
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