脱式计算,能简算的要简算. 4.2×5.5×1.2 &n...
脱式计算,能简算的要简算.4.2×5.5×1.24.6×1.45-1.08183×0.4÷24+1.654.87×2.34+4.87×7.6619.625-(4.716+...
脱式计算,能简算的要简算. 4.2×5.5×1.2 4.6×1.45-1.08 183×0.4÷24+1.65 4.87×2.34+4.87×7.66 19.625-(4.716+9.625) 6.4×9+6.4.
展开
展开全部
(1)4.2×5.5×1.2
=23.1×1.2
=27.72
(2)4.6×1.45-1.08
=6.67-1.08
=5.59
(3)183×0.4÷24+1.65
=73.2÷24+1.65
=3.05+1.65
=4.7
(4)4.87×2.34+4.87×7.66
=4.87×(2.34+7.66)
=4.87×10
=48.7
(5)19.625-(4.716+9.625)
=19.625-4.716-9.625
=(19.625-9.625)-4.716
=10-4.716
=5.284
(6)6.4×9+6.4
=6.4×(9+1)
=6.4×10
=64
=23.1×1.2
=27.72
(2)4.6×1.45-1.08
=6.67-1.08
=5.59
(3)183×0.4÷24+1.65
=73.2÷24+1.65
=3.05+1.65
=4.7
(4)4.87×2.34+4.87×7.66
=4.87×(2.34+7.66)
=4.87×10
=48.7
(5)19.625-(4.716+9.625)
=19.625-4.716-9.625
=(19.625-9.625)-4.716
=10-4.716
=5.284
(6)6.4×9+6.4
=6.4×(9+1)
=6.4×10
=64
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询