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before i get started here's a helper fact: the finger counting is left to right. Like reading.
Easy. Put up all your fingers. Look at them...look at them....now if your problem is 9 * 3. Then you would put down your third finger counting from the left.
You should see now 2 fingers. then a space (the third finger you put down) and then 7 other fingers. Put those numbers together and....27! 9 * 3 = 27!
Next example. 9 * 7. Put your hand up again. And put down your 7th finger down. counting from the left.
You should see now 6 fingers. then a space (the 7th finger you put down) and then 3 other fingers. Put those numbers together and....63! 9 * 7 = 63!
Now try some other numbers! It only goes up to 10 though. 11 * 9 = 99 and 12 * 9 = 108!
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-11 equals 9s plus 7?
9s + 7 = -11 9s = -18 s = -18/9 s = -2
What is equevitent to 7s plus 2s?
The equivalent is 7s+2s = 9s
Simplify -5r-9s plus 9r plus 3s-6?
You have to combine equal terms. -5r-9s+9r+3s-6 = -5r+9r-9s+3s-6 = 4r-6s-6
How many 9s in 81?
Nine of them
What is the 9s complement of four?
It is five.
Is there a trick to multiplying mixed numbers?
you have to turn them into improper fractions before you multiply them.
9x6?
The 9s trick is super easy so- stick up 10 fingers and count six Tim’s (with any number) and the awnser is 54
What is the greatest common factor of 9s and 63s3?
The GCF of 9s and 63s^3 is 9s.
What is 100000x10?
100,000x10=1,000,000. just do the 0s trick. For you beginners out their for multiplying here is a trick. Anything times 10, you just add another 0.
What is the plural of 9s?
You could have one No. 9 or a handful of No. 9s
-11 equals 9s plus 7?
9s + 7 = -11 9s = -18 s = -18/9 s = -2
What is the GCF of 9s and 63s to the third power?
The GCF is 9s.
What is the coolest math trick?
when you are multiplying a number by 11 you just have to split the number and add does 2 digits up. then you have your answer!! :)
How do you get 100 from five 9s?
Five 9s:(99 x 9 + 9) / 9 = 100
What is the greatest common factor of 9s and 36s?
Since 9s is a factor of 36s, it is automatically the GCF.
What is 15x10?
Trick: when multiplying any number by 10, your answer will be the number with a zero at its end. So: 15 x 10 = 150
What is equevitent to 7s plus 2s?
The equivalent is 7s+2s = 9s
