Curious and Useful Math
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|Tricks and rules for quickly calculating certain types of math problems, many from the 1888 book The Carpenter's and Joiner's Pocket Companion. Multiplication Tricks; Division Tricks; Squaring Tricks; Can it Divide...?; Age Math; Bible Numbers; Box Tricks; Word Roots; 1729, etc.; Scroll Down Slowly; Square Roots by Hand.|
|Levels:||Elementary, Middle School (6-8)|
|Math Topics:||Division, Multiplication, Exponents/Roots, Religion|
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