42.84x7简便计算方法?
21个回答
展开全部
42.84×7
=(40+2.84)×7
=40×7+2.84×7
=280+19.88
=299.88
=(40+2.84)×7
=40×7+2.84×7
=280+19.88
=299.88
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
42.84×7
=(40+2.84)×7
=280+2.84×5+2.84×2
=280+14.2+5.68
=294.2+5.68
=299.88
=(40+2.84)×7
=280+2.84×5+2.84×2
=280+14.2+5.68
=294.2+5.68
=299.88
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
42.84x7
=(40+2.84)x7
=40x7+2.84x7
=280+19.88
=299.88
=(40+2.84)x7
=40x7+2.84x7
=280+19.88
=299.88
追答
42.84x7=(40+2.84)x7=40x7+2.84x7=280+19.88=299.88
42.84x7=(40+2.84)x7=40x7+2.84x7=280+19.88=299.88
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
42.84x7
=(40+2.84)x7
=40x7+2.84x7
=280+19.88
=299.88
=(40+2.84)x7
=40x7+2.84x7
=280+19.88
=299.88
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
42.84x7
=(40+2.84)x7
=40x7+2.84x7
=280+19.88
=299.88
=(40+2.84)x7
=40x7+2.84x7
=280+19.88
=299.88
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