MathCounts West Ridge MS
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Tricks are ways to do math problems quickly
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Here are some tricks to memorize and some practice problems to see how speedy you can be.
Tricks No. 1 - Multiplying by numbers ending in 5, by 25, 75, 33 1/3, etc.
Trick Practice No. 1
Trick Practice No. 1 answers
Trick Practice No. 1b
Trick Practice No. 1b answers
Tricks No. 2 - Multiplying x11, x12, and 2 digit x 2 digit FOIL
Trick Practice No. 2
Trick Practice No. 2 answers
Halloween 2012 Warm-up
Halloween 2012 Warm-up answers
Tricks No. 3 - Difference bet 2 squares, exponents, radicals, logarithms
Tricks No. 4 - Polygons, regular polygons, regular hexagons
Counting, Combinations, and Permutations
Holiday 2012 Math Problems
Holiday 2012 Math Answers