×= 0.54÷6= ÷= 2.6×0.3= 27.8﹣1.9=
5.4÷0.09= 7.75+3.86-7.75+1.14= 2.5×0.99×0.4=
26.2+38= 40×0.1÷0.001= 56.27- 3.73-46.27=