32×3=
4×18=
45×4=
7×39=
28×6=
5×85=
99×6=
71×6=
①49+665=
②★806-308=
③★384+616=
④521×2=
⑤380×3=
⑥603×3=
99×7.2= 45×10.1= ÷ = + ﹣ = 1.25×3.2×2.5=
28.9÷1.25÷0.8= 56.5×9.9+5.65= (2.5﹣0.25)×0.4=
78.2﹣8.2×1.3= 4.5÷1.5÷1.5=