49.2÷24 =2.5
改正:
①101×9.9
②44﹣72÷
③36×()
④÷[(﹣)×3]
⑤95×3.8+6.2÷
⑥0.25×40÷0.25×40
①
②7.5×8×12.5
③
④193﹣16﹣84