Basic Addition
Khan Academy
688
07:43
Basic Subtraction
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668
08:32
Adding Mixed Numbers
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787
02:05
Adding Mixed Numbers with Unlike Denominators
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661
05:15
Subtracting Mixed Numbers
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726
03:58
Subtracting Mixed Numbers 2
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662
04:53
Multiplying Mixed Numbers
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1433
04:20
Dividing Mixed Numbers
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831
02:40
Converting Repeating Decimals to Fractions 1
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686
04:02
Converting Repeating Decimals to Fractions 2
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655
09:05
Writing proportions
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623
05:50
Find an Unknown in a Proportion
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726
07:19
Thomas Young's Double Slit Experiment
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580
07:32
U-substitution with ln(x)
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549
03:38
U-substitution Example 3
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509
05:32
U-substitution example 2
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489
04:03
U-substitution
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498
05:10
Trapezoidal approximation of area under curve
Khan Academy
521
08:26