①
②
③
④
⑤
⑥3.2×0.25×125%
÷[(1+)×]
17×19×()
0.25×12.5×32
12.5×1.6×0.45
①841﹣3248÷16
②25%×32×1.25
③ × + × .
①26×15﹣200
②8×4×12.5×0.25
③×+
④12÷[()×]
①7.4﹣6.62+20.6﹣13.38
②×+×
③(-+)÷
④2×0.8×12.5×50%
⑤÷(÷+)
⑥×[1÷(+)]
①101×9.9
②44﹣72÷
③36×()
④÷[(﹣)×3]
⑤95×3.8+6.2÷
⑥0.25×40÷0.25×40