hayden9102 ooh really? Yay I love the 11 one as well :) idk how not too many people find these things exciting. My cousin had taught me a great trick when I was a kid (it had something to do with adding numbers that were 5 digits) but I can’t remember. If I do I’ll let you know
Yeah keep me in the loop haha 😂 This is one of my callings in life. I kind of developed a trick which isn’t really a trick but I have to write it out one day because it is super complicated and doesn’t really help lol
You can find the cubic root of any two digit number (as long as it’s a whole number) just by looking at the first digits and last digit. You just need to know your 1-9 cubes
1cubed is 1
2cubed is 8
3 is 27
4 is 64
5 is 125
6 is 216
7 is 343
8 is 512
9 is 729
50,653 = the thousands are 50, which is between 27-64 so the first digit is 3
The last digit is 3, which if you look at your 1-9 cubes, 7 is the one that ends in 3, so the last digit is 7.
Also doing like geometry in 8th grade I made a trick (that apparently isn’t wellknown but I can’t imagine I made it up)
But if you have a problem where it’s like “The sum is 39 and the difference is 7. What are the numbers?”
You just add them and divide by 2 and subtract and divide by 2 and those are the answers.
39-7=32/2 is 16
39+7=46/2 is 23
Sam_Hamwich The cube root one is another that has impressed many people so it’s awesome you know that. I like your second trick but doing a systems of equations is basically the same thing.
Computer3000 I’ve heard of this one before as well. It’s still pretty cool though thanks!!!
