①4.12+ 1.37+ 0.88 + 3.63
②3.12÷2.5÷0.4
③48×()
④802-11×36
⑤0.56÷ (0.71+ 2.09)
⑥
⑦(0.84÷0.4+ 2.9)×0.4
⑧
24×(+-) ÷+× 8.63-3.2+7.37-6.8
35×1.25+8×35 9× 25×
①7.4﹣6.62+20.6﹣13.38
②×+×
③(-+)÷
④2×0.8×12.5×50%
⑤÷(÷+)
⑥×[1÷(+)]
①
②1.25×1.3×80
③7.28-3.14+1.72-2.86
④
⑤
①2.75×6.2+27.5×0.38
②0.125×32×2.5
③15.72-2.17-1.83+4.28