Question

求教一道数学题填上+、-、*、/或括号,使下面的算式成立4 4 4 4 4=14 4 4 4 4=24 4 4 4 4=

Answer 1

（4-4)*4+(4/4)=1

4-(4/4)-(4/4)=2

4-(4-4)-(4/4)=3

4-4+4-4+4=4

4-(4-4)+(4/4)=5

4+(4/4)+(4/4)=6

[(4*4-4)/4]+4=7

4*[(4/4)+(4/4)]=8

[(4*4+4)/4]+4=9

[(4+4)/4]+4+4=10

4+4+4-(4/4)=11

4+4+4-4+4=12

4+4+4+(4/4)=13

4*4-[(4+4)/4]=14

(4*4*4-4)/4=15

(4-4)*4+4*4=16

(4*4*4+4)/4=17

[(4+4)/4]+(4*4)=18

4*4+4-(4/4)=19

4+4+4+4+4=20