3.7×1.83.7 4.2÷1.54.2 6.21÷0.016.21×100
7.5÷0.05=
10÷0.1=
0.24×5=
2.9×6÷2.9×5=
12.4÷5=
6.56÷3.2=
★64.8÷0.8=
(2.1+0.7)÷0.35
7.52÷0.4÷2.5
9.55+6.3÷7×0.5