(1)(—7)+(—5)= (2)(—10.7)+0 = (3) (+9.5)+(—8.1)= (4)(+6分之5)+(—6分之1)= (5) (—25.1)+(+2510分之1)= (6) —(—7分之3)+(—7又7分之3) (7)—4.5的绝对值
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 02:25:43
![(1)(—7)+(—5)= (2)(—10.7)+0 = (3) (+9.5)+(—8.1)= (4)(+6分之5)+(—6分之1)= (5) (—25.1)+(+2510分之1)= (6) —(—7分之3)+(—7又7分之3) (7)—4.5的绝对值](/uploads/image/z/5927613-69-3.jpg?t=%EF%BC%881%EF%BC%89%EF%BC%88%E2%80%947%EF%BC%89%2B%EF%BC%88%E2%80%945%EF%BC%89%3D+%EF%BC%882%EF%BC%89%EF%BC%88%E2%80%9410.7%EF%BC%89%2B0+%3D+%EF%BC%883%EF%BC%89+%EF%BC%88%2B9.5%EF%BC%89%2B%EF%BC%88%E2%80%948.1%EF%BC%89%3D+%EF%BC%884%EF%BC%89%EF%BC%88%2B6%E5%88%86%E4%B9%8B5%EF%BC%89%2B%EF%BC%88%E2%80%946%E5%88%86%E4%B9%8B1%EF%BC%89%3D+%EF%BC%885%EF%BC%89+%EF%BC%88%E2%80%9425.1%EF%BC%89%2B%EF%BC%88%2B2510%E5%88%86%E4%B9%8B1%EF%BC%89%3D+%EF%BC%886%EF%BC%89+%E2%80%94%EF%BC%88%E2%80%947%E5%88%86%E4%B9%8B3%EF%BC%89%2B%EF%BC%88%E2%80%947%E5%8F%887%E5%88%86%E4%B9%8B3%EF%BC%89+%EF%BC%887%EF%BC%89%E2%80%944.5%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC)
(1)(—7)+(—5)= (2)(—10.7)+0 = (3) (+9.5)+(—8.1)= (4)(+6分之5)+(—6分之1)= (5) (—25.1)+(+2510分之1)= (6) —(—7分之3)+(—7又7分之3) (7)—4.5的绝对值
(1)(—7)+(—5)= (2)(—10.7)+0 = (3) (+9.5)+(—8.1)= (4)(+6分之5)+(—6分之1)= (5) (—25.1)+(+2510分之1)= (6) —(—7分之3)+(—7又7分之3) (7)—4.5的绝对值与5.5的相反数的和是?(8) —7与—3的相反数的和的绝对值?(9)—1.5的相反数与1.2的倒数的和?(10)绝对值小于3.2的所有整数和?
文子题是列示并计算!
(1)(—7)+(—5)= (2)(—10.7)+0 = (3) (+9.5)+(—8.1)= (4)(+6分之5)+(—6分之1)= (5) (—25.1)+(+2510分之1)= (6) —(—7分之3)+(—7又7分之3) (7)—4.5的绝对值
(1)(—7)+(—5)= -7-5=-12
(2)(—10.7)+0 =-10.7
(3) (+9.5)+(—8.1)=9.5-8.1=1.4
(4)(+6分之5)+(—6分之1)=5/6-1/6=4/6=2/3
(5) (—25.1)+(+2510分之1)=-25.1+25.1=0
(6) —(—7分之3)+(—7又7分之3)=3/7-7又3/7=-7
(7)—4.5的绝对值与5.5的相反数的和是?
|-4.5|+(-5.5)
=4.5-5.5
=-1
(8) —7与—3的相反数的和的绝对值?
-7+[-(-3)]
=-7+3
=-4
(9)—1.5的相反数与1.2的倒数的和?
-(-1.5)+1/1.2
=1.5+5/6
=9/6+5/6
=7/3
(10)绝对值小于3.2的所有整数和?
绝对值小于3.2的整数是-3、-2、-1、0、1、2、3
它们的和是-3+(-2)+(-1)+0+1+2+3=0