Fours Equations!?

Question

if anybody is good at math I really need your help.
you have to get an equation/formula for the numbers 20 to 30
but you start of with, six, fours, u have to use all six of the fours.

Hints: 4/4=1, (4+4)/4=2 sorry thats all I got

umm Im sorry but I really dont know what !/factoral means

Answer 1

21 = 4*(4+4/4)+4/4

27 =4!+(4+4)/4 +4/4

29 =(4 +4)*4 - 4 + 4/4

27 without using factorial is

(4 + 4)*4 -4 -4/4

28 without using factorial

(4 +4)*4 - 4 + 4 - 4

30 without using factorial is

(4 + 4)*4 - (4 + 4)/4

20 without using factorial is 4*4 + 4 +(4 - 4)*4

22 without using factorial is 4 * 4 + 4 +(4 + 4)/4

The only one for 26 without factorial I can get is a bit of a cheat.

44/((4+4)/4) + 4

Answer 2

We used to do this in math class with 4 4s. Lots of fun.
The trick is to play around with combinations until you get something you can use. When you have a good one, see if you can make it something else by changing a sign.

BTW, do you know 4-factorial or 4!. This is 4 * 3 * 2 * 1, or 24; very useful. :)

20: 4! - 4 + 4/4 - 4/4

22: 4! - 4 + 4/4 + 4/4
23: 4 * 4 + 4 + 4 - (4/4)
24: (4^4)/(4 * 4) + 4 + 4
25: 4 * 4 + 4 + 4 + (4/4) or 4! + 4 - (4 + 4 + 4)/4
26: 4! + 4 - 4/4 - 4/4

28: 4! + 4 - 4/4 + 4/4

30: 4! + 4 + 4/4 + 4/4

I'll think about the others and see what I can come up with.

Answer 3

no clue sorry