简算：86×0.27+8.2×1.4+5.5×8.6,_数学解答

简算：86×0.27+8.2×1.4+5.5×8.6,

人气：418 ℃　时间：2019-12-17 04:33:58

解答

=8.6×0.27+8.2×1.4+5.5×8.6
=8.6×(2.7+5.5)+8.2×1.4
=8.6×8.2+8.2×1.4
=8.2×(8.6+1.4)
=8.2×10
=82