①1.7+3.98+5 +2.02
②13×50-618÷6
③(156× -26)×
④(1.5- )×(4- )
⑤
⑥
7.63﹣2.8+1.37
4.5×8×1.25
6.4×+3.6×
①2.35×4.8+76.5×0.48
②
③
④8.8-6.75+9.2-0.25
⑤4.86×[1÷(2.1-2.09)]
⑦
⑧
23+5.61+177+0.39=( )