Basic Addition
Khan Academy
691
07:43
Basic Subtraction
Khan Academy
669
08:32
Adding Mixed Numbers
Khan Academy
789
02:05
Adding Mixed Numbers with Unlike Denominators
Khan Academy
663
05:15
Subtracting Mixed Numbers
Khan Academy
729
03:58
Subtracting Mixed Numbers 2
Khan Academy
665
04:53
Multiplying Mixed Numbers
Khan Academy
1435
04:20
Dividing Mixed Numbers
Khan Academy
834
02:40
Converting Repeating Decimals to Fractions 1
Khan Academy
689
04:02
Converting Repeating Decimals to Fractions 2
Khan Academy
658
09:05
Writing proportions
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625
05:50
Find an Unknown in a Proportion
Khan Academy
728
07:19
Thomas Young's Double Slit Experiment
Khan Academy
583
07:32
U-substitution with ln(x)
Khan Academy
554
03:38
U-substitution Example 3
Khan Academy
513
05:32
U-substitution example 2
Khan Academy
494
04:03
U-substitution
Khan Academy
502
05:10
Trapezoidal approximation of area under curve
Khan Academy
526
08:26