App Description
CHRISTmaths is a creative math problem solving book with a recreational flavor, by leveraging on the Christmas theme to posing and solving non-routine math problems.
50% off the printed book price.
The 196-page fun book would appeal to - readers wishing to brush up their mathematical problem-solving skills in a fun and recreational manner; - problem solvers wanting to experience some aha! moments while solving some fertile questions; - students and mathletes longing for some creative mathematics as they flee from drill-and-kill assessment books.
CHRISTmaths answers questions such as these: What day of the week is Christmas in 2025? How many zeros are there in 1 x 2 x 3 x ... x 24 x 25? Was Pythagoras a pre-Christian Christian? 12 Challenges @ Christmastime ... 25 Mathematical Quickies & Trickies Xmas Philamath The 12 Puzzles of Christmas ... Christmas Tangrams CHRISTMAS Alphametics The Twelve Days of Christmas .... and many more.
iPad Screenshots
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App Changes
- December 09, 2013 Price decrease: $9.99 -> $4.99
- December 21, 2013 Price increase: $4.99 -> $9.99
- November 28, 2014 Price decrease: $9.99 -> $7.99
- February 18, 2015 Price increase: $7.99 -> $9.99
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