2.4x0.3+0.6x2.1的简便计算
3个回答
展开全部
2.4×0.3+0.6×2.1
=(0.6×4)×0.3+0.6×2.1
=0.6×4×0.3+0.6×2.1
=0.6×(4×0.3)+0.6×2.1
=0.6×1.2+0.6×2.1
=0.6×(1.2+2.1)
=0.6×3.3
=1.98
=(0.6×4)×0.3+0.6×2.1
=0.6×4×0.3+0.6×2.1
=0.6×(4×0.3)+0.6×2.1
=0.6×1.2+0.6×2.1
=0.6×(1.2+2.1)
=0.6×3.3
=1.98
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
计算如下：
2.4×0.3+0.6×2.1
=1.2×0.6+0.6×2.1
=0.6×（1.2+2.1）
=0.6×3.3
=1.98
2.4×0.3+0.6×2.1
=1.2×0.6+0.6×2.1
=0.6×（1.2+2.1）
=0.6×3.3
=1.98
本回答被网友采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
2.4x0.3+0.6x2.1
=2.4x0.3+0.3*4.2
=0.8*0.9+0.9*1.4
=0.72+1.4-0.14
=1.4+0.6-0.02
=2-0.02
=1.98
=2.4x0.3+0.3*4.2
=0.8*0.9+0.9*1.4
=0.72+1.4-0.14
=1.4+0.6-0.02
=2-0.02
=1.98
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
更多回答（1）
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
