①
②
③
2.3×1.5+4.5÷0.75 (7.5+2.5)÷0.25
3.8×99+3.8 2.8+4.36+5.64 [×(-)]÷
×÷[(1-)÷] (+-)×24 ×101-
25×32×125
2.25×4.8+77.5×0.48
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