1.3×2.8= 0.13×0.28= 13×2.8=
0.013×28= 0.13×2.8= 1.3×0.028=.
3.75×1.13.75 0.81×10.81
4.69×0.994.69 1.54×0.723.75×1.54
0.2×0.4= 9.1÷14= 22.4÷4= 2.5×0.4=
2.4×5= 4.2÷3= 3.99×1= 0×3.52=
①42×5.4
②5.6×1.8
③0.25×0.46(保留到百分位)
④43.5÷29
⑤20.4÷24=
⑥32.8÷16=
A(,),B(,),C(,),
D(,),E(,),F(,).