HEEEEEEEELP MEEEEEE! I'VE GOT A MATHS TEST WITHOUT A CALCULATOR! HOW SHALL I SURVIVE WITHOUT A CALCULATOR?
+4710 It's not too hard when you put your brain onto it! And that's coming from a 12 years old.
It would be easier on paper as I can't really display workings...
But start from the begging as you'll get a head start to 15!.
1!= 1 (1*1)
2!=2 (1*2)
3!=6 (1*2*3)
4!=24 (1*2*3*4)
5!=120 (1*2*3*4*5)
6!=720 (1*2*3*4*5*6)
Ect...
This is from the top of my head! For the harder bit i recommend the Grid method.
It splits up each digit so you times each digit easily and get an accurate result.
Once you get to 15!, start from 15! - 14! (Use collum method) and then get to 1. it should take 5-10min.
(That is for me, maybe for you it'll be quicker)!
WHAT IS: 15!-14!-13!-12!-11!-10!-9!-8!-7!-6!-5!-4!-3!-2!-1!?
DON'T TELL ME IT IS OVER ONE (BRITISH) BILLION-MY MUM WILL K**L ME!
+4710 The test will be appropriate it won't be too hard on you!
Also, you can do working outs.
Calculator questions, aren't mainly on the fact that its a long calculation but how you solve it.
You'll be fine!
+4710 It's not too hard when you put your brain onto it! And that's coming from a 12 years old.
It would be easier on paper as I can't really display workings...
But start from the begging as you'll get a head start to 15!.
1!= 1 (1*1)
2!=2 (1*2)
3!=6 (1*2*3)
4!=24 (1*2*3*4)
5!=120 (1*2*3*4*5)
6!=720 (1*2*3*4*5*6)
Ect...
This is from the top of my head! For the harder bit i recommend the Grid method.
It splits up each digit so you times each digit easily and get an accurate result.
Once you get to 15!, start from 15! - 14! (Use collum method) and then get to 1. it should take 5-10min.
(That is for me, maybe for you it'll be quicker)!
