mathXplosion
15.7. 16:57
Pick a Block of Dates - Any Block
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This episode introduces the mathematical mean: the number you get when you add up all numbers and divide them by the number of numbers.
This episode introduces the mathematical mean: the number you get when you add up all numbers and divide them by the number of numbers. Eric presents a trick you can do by calculating the sum of a 3-by-3 block of dates on a calendar without using a calculator.
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