I need help with my kids 8th grade math.?

Question

use all the digits 1,2,3 and 4 in any order, with the operations +,-,x,*,^(powers),(square root) and ! (factorial), to write expressions for the counting numbers 1 to 100. Grouping symbols (parthesis) and crunching numbers such as 23 and 41 are permitted. Must follow Order of operations!
77=
88=
89=
90=

Answer 1

77=(3!+4+1)(3+4)
88=(4^3)+(4*3*2)
89=(4^3)+(4*3*2)+1
90=(4^3)+(4*3*2)+2

Answer 2

1 = 4-3 + 2/2 - 2/2
2=

Answer 3

88 = (4+1)! - 32