4 + 4 + 4 + 4 + 4 + 4 + 4 / 4 = 7
(4 + 4 + 4 + 4 + 4 + 4 + 4 = 28)
(28 / 4 = 7)
4 x 4! - (4/.4)
4+4(4-4)
101
4 /5
Using four fours, you can get 19 with the following sum: 4! - 4 - (4 / 4) That is, four factorial minus four - (four divided by four) - 24 - 4 - (4 / 4) = 19
44 / 4 + root(4) is one solution. You can find additional solutions in the Wikipedia article "Four fours".
44 + 4/4
(4!/4)4 - 4
To make 11 using four fours, you can use the following equation: ( 4 \times 4 - 4 - 4 = 11 ). Here, you multiply two fours to get 16, then subtract two fours to reach 11. This creatively utilizes the four fours while adhering to the mathematical operations allowed.
Google "Four Fours" and you will find a number of solutions, presented more comprehensively than we can.
(4+4)/4 + 4 =6
(4*4)-(4/4)