(1)(—4)+(+5)+(—10)+(+4)= (2)15+(—20)+28+(—40)+(—35)= (3)(—2又10分之7)—(—3又5分之3)= (4)(+1又2分之1)+(—2又3分之1)+(—2分之1)+(+3分之2)=
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 01:32:08
![(1)(—4)+(+5)+(—10)+(+4)= (2)15+(—20)+28+(—40)+(—35)= (3)(—2又10分之7)—(—3又5分之3)= (4)(+1又2分之1)+(—2又3分之1)+(—2分之1)+(+3分之2)=](/uploads/image/z/7644547-19-7.jpg?t=%EF%BC%881%EF%BC%89%EF%BC%88%E2%80%944%EF%BC%89%2B%EF%BC%88%2B5%EF%BC%89%2B%EF%BC%88%E2%80%9410%EF%BC%89%2B%EF%BC%88%2B4%EF%BC%89%3D+%EF%BC%882%EF%BC%8915%2B%EF%BC%88%E2%80%9420%EF%BC%89%2B28%2B%EF%BC%88%E2%80%9440%EF%BC%89%2B%EF%BC%88%E2%80%9435%EF%BC%89%3D+%EF%BC%883%EF%BC%89%EF%BC%88%E2%80%942%E5%8F%8810%E5%88%86%E4%B9%8B7%EF%BC%89%E2%80%94%EF%BC%88%E2%80%943%E5%8F%885%E5%88%86%E4%B9%8B3%EF%BC%89%3D+%EF%BC%884%EF%BC%89%EF%BC%88%2B1%E5%8F%882%E5%88%86%E4%B9%8B1%EF%BC%89%2B%EF%BC%88%E2%80%942%E5%8F%883%E5%88%86%E4%B9%8B1%EF%BC%89%2B%EF%BC%88%E2%80%942%E5%88%86%E4%B9%8B1%EF%BC%89%2B%EF%BC%88%2B3%E5%88%86%E4%B9%8B2%EF%BC%89%3D)
xRK { .z \nIOcWp(`D
<l]m}{~C#`T"㠣BVA]P]s|%L,S&5}(zNou,_cǃe:yg5h28R`50+Fy3k~_0$LKJHʭmȂK
(1)(—4)+(+5)+(—10)+(+4)= (2)15+(—20)+28+(—40)+(—35)= (3)(—2又10分之7)—(—3又5分之3)= (4)(+1又2分之1)+(—2又3分之1)+(—2分之1)+(+3分之2)=
(1)(—4)+(+5)+(—10)+(+4)= (2)15+(—20)+28+(—40)+(—35)= (3)(—2又10分之7)—(—3又5分之3)= (4)(+1又2分之1)+(—2又3分之1)+(—2分之1)+(+3分之2)=
(1)(—4)+(+5)+(—10)+(+4)= (2)15+(—20)+28+(—40)+(—35)= (3)(—2又10分之7)—(—3又5分之3)= (4)(+1又2分之1)+(—2又3分之1)+(—2分之1)+(+3分之2)=
(1)(—4)+(+5)+(—10)+(+4)
=-5
(2)15+(—20)+28+(—40)+(—35)
=28-80=-52
(3)(—2又10分之7)—(—3又5分之3)
=-27/10+18/5
=-27/10+36/10
=9/10.
(4)(+1又2分之1)+(—2又3分之1))+(—2分之1)+(+3分之2)
=1-5/3
=-2/3.