![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
1.51.51.51.51.51.5 = 4.51.51.51.51.51.51.5 = 6 use operation symbols and brackets to make the equation hold RT
1.5+1.5+1.5+1.5-1.5=4.5
(1.5+1.5)*(1.5+1.5)/1.5=6
0.20.20.20.20.20.2 = 0, fill in the sign or bracket
(0.2-0.2)×(0.2+0.2÷0.2)=0
0.25__ 0.25__ 0.25__ 0.25 = 0.125 fill in the brackets with symbols
0.25_ X_ 0.25_ +_ 0.25_ X_ 0.25=0.125
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