Tell them not to tell you what the result is. Now have him or her subtract the lower (and smaller) 3-digit number from the upper (and larger) 3-digit number.And write this number right underneath the first number. Next have her or him form a new 3-digit number by reversing the digits, putting the smallest first and the largest last. Tell him/her not to tell you what the numbers are. Tell him or her (or her or him) to write the three numbers down next to each other, largest first and smallest last, to form a single 3-digit number.Ask your mark to pick three (3) different numbers between 1 and 9.(But remember we were first.)Īmaze the peons with this one. If you want more math challenges try the new PBS MATHLINE MATH CHALLENGESsite.Explore Geometryin a fun and interactive way.Test your knowledge of the multiplication tables ().(If you're using Netscape, Do Not Scroll down the page while this loads. Play a Math-Chase Game () - for one or two players.
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