①13×+
②3.6×3+6.4×60%
③
④9.43﹣(0.39﹣0.37)
⑤2023
⑥×(2.5﹣)
×3.72+60%×1.28 3.14×(52-42) 13.09-(+3.09)
12×(+-) ×+÷3 ÷[(+)×]
①2.4÷×
②(+﹣)×36
③×99
④29.3﹣12.6﹣7.4
⑤5.9×8.5﹣49×0.85
⑥×[6÷(﹣)]
①15.28﹣3.6﹣3.4
②()×7.2
④7.5÷[(6.8﹣4.3)×0.12]