0.4×0.6= 5.4÷3= 1.5÷0.1= 1.4×0.05=
0.8+0.25= 0.2×0.2= 0.72÷0.6= 1.25×8÷1.25×8=
=
73.5÷12.5÷8
12-11.5÷2.5
3.6÷1.2- 0.8×2.7
(6.5×2.8-5.6)÷1.2
☆☆☆☆☆☆☆☆☆☆