÷[(1+)×]
17×19×()
0.25×12.5×32
12.5×1.6×0.45
2.5×32÷32×2.5 (-+)÷ ×[-(-)]
①1408﹣716﹣327
②4.37×99+4.37
③
④
①180-60÷12×24
②18-
③1.25×3.2×250
⑤24×()
⑥
×14 23.5×10.2﹣235×0.02
12÷[(+)×] +0.375+-0.6
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