简便计算数学题,恩呢我无语【ps:】0.314*82+6.86*8.21.18*2.02-1.18*0.020.65*9.9+0.0650.02*35.6*50【有点多,实在对不起】

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/20 06:31:16
简便计算数学题,恩呢我无语【ps:】0.314*82+6.86*8.21.18*2.02-1.18*0.020.65*9.9+0.0650.02*35.6*50【有点多,实在对不起】简便计算数学题,恩

简便计算数学题,恩呢我无语【ps:】0.314*82+6.86*8.21.18*2.02-1.18*0.020.65*9.9+0.0650.02*35.6*50【有点多,实在对不起】
简便计算数学题,恩呢我无语
【ps:】
0.314*82+6.86*8.2
1.18*2.02-1.18*0.02
0.65*9.9+0.065
0.02*35.6*50
【有点多,实在对不起】

简便计算数学题,恩呢我无语【ps:】0.314*82+6.86*8.21.18*2.02-1.18*0.020.65*9.9+0.0650.02*35.6*50【有点多,实在对不起】
0.314*82+6.86*8.2
=0.314*82+0.686*82
=82*(0.314+0.686)
=82*1
=82
1.18*2.02-1.18*0.02
=1.18*(2.02-0.02)
=1.18*2
=2.36
0.65*9.9+0.065
=0.65*9.9+0.65*0.1
=0.65*(9.9+0.1)
=0.65*10
=6.5
0.02*35.6*50
=0.02*50*35.6
=1*35.6
=35.6