20 ÷ 1/4 = 20 × 4/1 = 80.
9
1/5 x 20 = 4
1รท5-1รท4 = (4-5)รท20 =-1รท20
4*5=201*20=2010*2=20
4/4+4*4=20 1+4*4=20 5*4=20 20=20
n + 1/4 = 9/20 n + 5/20 = 9/20 n = 4/20 = 1/5
4 out of 20:= 4/20 or 1/5
1.) 4*1*(2+3) = 202.) 24+ 1 + 3 = 20 3.) 2(3+1)+ 4 = 20 4.) 42+ 1 + 3 = 20
1/4-1/20=5/20-1/20=4/20=1/5
0.25
((4^(-1)/4^(-1))+4)*4=20 or (((-4)/(-4))+4)*4=20