无
*注意事项:
36× ÷ ×
÷ ÷ ×5+2 ×(5+2)
4.2× = 20÷ = 26÷ =
7.2× =
①45÷(1- )
②15.3× +2.7÷
③ ÷(4- - )
④8.2- ×7-5÷12
⑤24× - ×4
⑥ ÷[(0.8- )÷ ]
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