①(+18)÷9
②×+÷
③4080÷12-24×1.5
④3.2×0.25×1.25
⑤÷[×(-)]
⑥÷[-(+25%)]
① 46.7-19.13-6.87 ② 1.25×2.5×3.2 ③
④35×12+350÷70 ⑤ ⑥
2.3×1.5+4.5÷0.75 (7.5+2.5)÷0.25
①18 -(2.35+8.6)(用简便方法)
②125%×3.2×25(用简便方法)
③76× +23÷ +60%(用简便方法)
④2020× (用简便方法)
⑤( - )×( - )
⑥ ×[1-( - )]
=
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