This video demonstrates, without narration, a trick to multiplying large numbers. To do the trick, just draw a diagonal line for every unit in the number and add up the number of times the lines cross.
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Remember "greater than" & "less than" symbols
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Find the Percent Given Two Numbers
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How To:
Do long division without a calculator
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How To:
Find a number given Its percent
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How To:
Spend Money on a Graphing Calculator? Nah—Just Use This Web-Based TI Emulator
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Find the formula of a piecewise function given a graph
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How To:
Use ">" (greater than) and "<" (less than) symbols
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How To:
Complete a proof involving segments
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How To:
Find the standard deviation with the Z-Score formula
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Figure out the domain & range of a piecewise function
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Find the slope of a line given 2 points with fractions
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Isolate a variable
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Find density using the water displacement method
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Rotate a shape about the origin 90° counter-clockwise
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Find the Slope Given 2 Ordered Pairs
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Find a missing side of a triangle, similar to another
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Write a slope-intercept equation given an X-Y table
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Find the opposite and absolute value of a number
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Learn Calculus in 20 minutes
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Calculate percent error in chemistry lab activities
2 Comments
thats all fine and well if you multiply equal ammounts of numbers. now what if they are different, say 569 x 73? it doesnt form the same type of grid and i am lost as to which crossing places you add up.
dont get weird
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