Ever wonder about the abacus? This venerable classic is surprisingly easy to use. Check out this brief demo on various abacuses.
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How To:
Simplify a quadratic formula result
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Calculate Faster Than a Calculator
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Find a slope of a straight line with: Ax + By + C = 0
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Find the circumference of a circle
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Find the slope of a line given 2 points with fractions
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Find a number given Its percent
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Figure out and calculate sales tax
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Learn Calculus in 20 minutes
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Simplify radical expressions
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Find the volume of a cylinder
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Use ">" (greater than) and "<" (less than) symbols
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Multiply & Divide Numbers (Basic Elementary Math)
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Subtract a mixed number from a proper fraction in basic math
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Find the Slope Given 2 Ordered Pairs
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Find extra points for a parabola (quadractic equation)
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Find the perimeter & area of a complex figure
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Find Leg Lengths and Hypotenuse of a 45 45 90 Triangle
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Find the vertical asymptotes of rational functions
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Find the equation of a line given 2 points
How To:
Solve a word problem that involves proportions
How To:
Simplify a quadratic formula result
How To:
Calculate Faster Than a Calculator
How To:
Find the circumference of a circle
How To:
Find a slope of a straight line with: Ax + By + C = 0
How To:
Find the slope of a line given 2 points with fractions
How To:
Simplify radical expressions
How To:
Figure out and calculate sales tax
How To:
Find a number given Its percent
How To:
Find the volume of a cylinder
How To:
Learn Calculus in 20 minutes
How To:
Use ">" (greater than) and "<" (less than) symbols
How To:
Multiply & Divide Numbers (Basic Elementary Math)
How To:
Subtract a mixed number from a proper fraction in basic math
How To:
Find the Slope Given 2 Ordered Pairs
How To:
Find extra points for a parabola (quadractic equation)
How To:
Find Leg Lengths and Hypotenuse of a 45 45 90 Triangle
How To:
Solve word problems involving direct variation
How To:
Solve a word problem that involves proportions
How To:
Find the equation of a line given 2 points
How To:
Find the perimeter & area of a complex figure
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