Math Forum: K-12 Problems, Puzzles, Tips & Tricks

Math Forum: K-12 Math Problems, Puzzles, Tips & Tricks

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Student Center || Teachers' Place
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Calculation Tips | Problems | Puzzles

See also our Library's list of math problems and puzzles on the Internet.
Download an archive for local viewing of the following tips and tricks: Mac or Windows.

Calculation Tips

Doing Math in Your Head
	Beat the Calculator - BEATCALC! More than 240 mental calculation tricks from the BEATCALC mailing list

	Divisibility Rules for numbers 3-13 Why do these rules work?
	Multiplication Tips Hints for multiplying by 5, 9, and 11

Math Problems

Russian Math Olympiads
	St. Petersburg, Russia 20 problems from the Palace of Youth Creativity
	Vologda, Russia 28 problems for grades 5-11

MathPro Online
	MathPro Online Reference to Mathematical Problems

Math Puzzles

Number & Line Puzzles
	Number Puzzles 2000 Puzzle \| 1999 \| 1998 \| 1997 \| 1996 \| Four 4's Puzzle
	Math Line Puzzles Join the dots \| Rosebush Puzzles \| M Puzzle \| Toothpick Puzzle

Exploring Facts, Uncovering Connections
	*Critical Thinking Puzzles* Brain teasers from Michael DiSpezio's book

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