24 videos in "Computation Shortcuts"
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Ex 1 - Multiplying numbers with 25
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Ex 2 - Multiplying numbers with 25
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Ex 3 - Multiplying numbers with 25
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Ex 1 - Multiplying numbers with 11
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Ex 2 - Multiplying numbers with 11
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Ex 3 - Multiplying numbers with 11
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Ex 1 - Multiplying numbers with 5
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Ex 2 - Multiplying numbers with 5
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Ex 3 - Multiplying numbers with 5
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Ex 1 - Multiplying numbers using Line Intersection
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Ex 2 - Multiplying numbers using Line Intersection
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Ex 3 - Multiplying numbers using Line Intersection
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Ex 1 - Dividing numbers by 25
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Ex 2 - Dividing numbers by 25
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Ex 3 - Dividing numbers by 25
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Ex 1 - Dividing numbers by 5
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Ex 2 - Dividing numbers by 5
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Ex 3 - Dividing numbers by 5
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Ex 1 - Subtracting from multiples of 10
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Ex 2 - Subtracting from multiples of 10
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Ex 3 - Subtracting from multiples of 10
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Ex 1 - Squaring numbers ending with 5
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Ex 2 - Squaring numbers ending with 5
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Ex 3 - Squaring numbers ending with 5
Ex 2 - Dividing numbers by 5
Meets these NCTM Standards:
- How do you divide a number by 5?
- Is there a quick and easy shortcut or trick for dividing numbers by 5?
- How can you find 4905 / 5 quickly?
This video shows a good and useful method for dividing a number by 5. Great for quick mental math computations.
silent clip, but steps are clear. It would be good if the viewer could try one example on his own to test the technique. Ad for additional videos was distracting.
