无
*注意事项:
1.4×3= 1.2÷3= 7.3-3= 5.42+3.5=
4.5÷1.5= 39+1.3= 0÷6.32= 0.96÷0.3=
①0.74×99
②1.39×6.1+3.9×1.39
③2.4×0.7÷2.4×0.7
④42.72÷0.48+0.52
⑤4.9÷0.25÷0.4
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