744*27/81简算还有:8457*8457-8456*845864.2*87+0.642**13000.387*76000-387*66+84*387+38.7*600.999*1.3-0.111*2.7

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/06 01:37:57

744*27/81简算还有:8457*8457-8456*845864.2*87+0.642**13000.387*76000-387*66+84*387+38.7*600.999*1.3-0.111*2.7
744*27/81简算
还有:8457*8457-8456*8458
64.2*87+0.642**1300
0.387*76000-387*66+84*387+38.7*60
0.999*1.3-0.111*2.7

744*27/81简算还有:8457*8457-8456*845864.2*87+0.642**13000.387*76000-387*66+84*387+38.7*600.999*1.3-0.111*2.7
您好:

744*27/81
=744x1/3
=246

8457*8457-8456*8458
=8457x8456+8457-8456x8458
=8457-8456x(8458-8457)
=8457-8456
=1

64.2*87+0.642**1300
=64.2x87+64.2x13
=64.2x(87+13)
=6420

0.387*76000-387*66+84*387+38.7*60
=387x(76-66+84+6)
=387x100
=38700

0.999*1.3-0.111*2.7
=0.999x1.3-0.999x3
=0.999x10
=9.99


不明白,可以追问
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