26=+=+=×;
33=+=×.
3.48080…≈
9.84646…≈.
÷3.07=5.8.
0.56÷0.7=
0.6+0.65=
3.9÷1.3=
12÷0.03=
5.2÷0.13=
99×1.01=
13.5﹣2.8﹣7.2=
25×0.32×125=