I can't do my table of 5's. I always do times 10, divide by 2
I can't do my table of 5's. I always do times 10, divide by 2
18 comments
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Oh, at first I thought that was crazy, but I actually do the same thing.
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My favorite was 9, you decrement the unit position and increment the 10s position
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9 is fun. Start counting up and down from 6 and 5 respectively. Multiply by 9. You get two numbers from the same two digits. 54,45. 63,36...
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Open your hands and turn down the Nth finger. 9•N is the the number of fingers to the left of it in the 10s position and the number of fingers to the right in the unit position.
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What sorcery is this!
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wait is that not how everyone does it 😂
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I use 5, 8, 11, 17 and 35 times table daily. I would say it’s best to practice repetition if you want to remember something. Plus your teachers lied to you, you will always have a calculator with you!
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Whatever works for you. I take half of the non five number and stick a zero on it. Plus five for odds.
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It has never even occurred to me to do it this way. May actually start, myself.
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9×5=?
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Joke's on you, I remember my nines
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90/2 duh
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18 comments