①
②1.25×1.3×80
③7.28-3.14+1.72-2.86
④
⑤
⑥
7.63﹣2.8+1.37
4.5×8×1.25
6.4×+3.6×
23+5.61+177+0.39=( )
①7.4﹣6.62+20.6﹣13.38
②×+×
③(-+)÷
④2×0.8×12.5×50%
⑤÷(÷+)
⑥×[1÷(+)]
①2.75×6.2+27.5×0.38
②0.125×32×2.5
③15.72-2.17-1.83+4.28
①1.7+3.98+5 +2.02
②13×50-618÷6
③(156× -26)×
④(1.5- )×(4- )