80×3.8×0.125 8.5﹣(5.6+4.8)÷1.3
45÷[(0.5+)÷12] 12.5×(0.8×8) 2.25×1.8+12.5×0.18
①0.75÷[×(0.5﹣)] ②13.7﹣1.32+1.7﹣3.68
③125%×3.2×25 ④11×(+)×9
①
②0.25×0.125×3.2
③
④
8×4×12.5×2.5
×+÷13
+[(-)×]
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