求答案，算式
1个回答
展开全部
1、(1)3.78+4.67+4.22
=3.78+4.22+4.67
=8+4.67
=12.67
(2)13.05-1.47+10.89
=11.58+10.89
=22.47
(3)18.02-(5.83-1.98)
=18.02+1.98-5.83
=20-5.83
=14.17
(4)25.23-(2.53+5.23)
=25.23-5.23-2.53
=20-2.53
=17.47
(5)9+9.3+9.7+9.8+9.5+9.2
=9+(9.3+9.7)+(9.8+9.2)+9.5
=9+19+19+9.5
=56.5
(6)55.7-9.6-8.9-9.2-9.4-9.1
=55.7-(9.6+9.4)-(8.9+9.1)-9.2
=55.7-19-18-9.2
=55.7-(19+18+9.2)
=55.7-46.2
=9.5
=3.78+4.22+4.67
=8+4.67
=12.67
(2)13.05-1.47+10.89
=11.58+10.89
=22.47
(3)18.02-(5.83-1.98)
=18.02+1.98-5.83
=20-5.83
=14.17
(4)25.23-(2.53+5.23)
=25.23-5.23-2.53
=20-2.53
=17.47
(5)9+9.3+9.7+9.8+9.5+9.2
=9+(9.3+9.7)+(9.8+9.2)+9.5
=9+19+19+9.5
=56.5
(6)55.7-9.6-8.9-9.2-9.4-9.1
=55.7-(9.6+9.4)-(8.9+9.1)-9.2
=55.7-19-18-9.2
=55.7-(19+18+9.2)
=55.7-46.2
=9.5
更多追问追答
追答
本回答由提问者推荐
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
