1.(-2 3/4)+(+12 5/7)+(-4.125)+(+0.75)+(+1/8);
来源:学生作业帮 编辑:搜狗做题网作业帮 分类:数学作业 时间:2024/07/01 11:44:30
1.(-2 3/4)+(+12 5/7)+(-4.125)+(+0.75)+(+1/8);
2.(-8 3/7)+(-7.5)+(-21 4/7)+(+3 1/2)
3.(-2 1/2)+(+5/6)+(-0.5)+(+1 1/6);
4.(-1)+2+(-3)+4+(-5)+6+...+(-99)+100;
2.(-8 3/7)+(-7.5)+(-21 4/7)+(+3 1/2)
3.(-2 1/2)+(+5/6)+(-0.5)+(+1 1/6);
4.(-1)+2+(-3)+4+(-5)+6+...+(-99)+100;
1.(-2 3/4)+(+12 5/7)+(-4.125)+(+0.75)+(+1/8)
= -2.75+0.75+12又5/7-4.125+0.125
= -2-4+12又5/7
=6又5/7
2.(-8 3/7)+(-7.5)+(-21 4/7)+(+3 1/2)
== -8又3/7-21又4/7-7.5+3.5
= -30-3.5
= -33.5
3.(-2 1/2)+(+5/6)+(-0.5)+(+1 1/6);
= -2.5-0.5+5/6+1又1/6
= -3+2
= -1
4.(-1)+2+(-3)+4+(-5)+6+...+(-99)+100;
= (-1+2)+(-3+4)……+(-99+100)
= 1×50
=50
= -2.75+0.75+12又5/7-4.125+0.125
= -2-4+12又5/7
=6又5/7
2.(-8 3/7)+(-7.5)+(-21 4/7)+(+3 1/2)
== -8又3/7-21又4/7-7.5+3.5
= -30-3.5
= -33.5
3.(-2 1/2)+(+5/6)+(-0.5)+(+1 1/6);
= -2.5-0.5+5/6+1又1/6
= -3+2
= -1
4.(-1)+2+(-3)+4+(-5)+6+...+(-99)+100;
= (-1+2)+(-3+4)……+(-99+100)
= 1×50
=50
1.(-2 3/4)+(+12 5/7)+(-4.125)+(+0.75)+(+1/8);
(- 2又4分之3 )+( + 12又7分之5 )+(+ 0.75)+(+ 8分之1 )+(- 4.125 )
(-2又3/4)+12又5/7+(-4.125)+0.75+1/8=多少?列式计算!
数学简便运算(-2/3/4)+12/5/7+.75+1/8+(-4.125)=( )
5/17*(-3/7)+5/17*(-4/7)-12/17 (-0.75)*(-3又1/8)-0.75*(-4又7/8)
0.75+(-2又3/4)+(+0.125)+(-12又5/7)+(-4又1/8)
1又2/3*【7又5/6+(4.125—4又1/8)—4又5/6】的简便计算怎么做
0.75加(-2又4分之3)加(加0.125)加(-12又7分之5)加(-4又8分之1) 综合计算
简便计算 0.75+(2又3/4)+(+0.125)+(-12又5/7)+(-4又1/8)
0.75+(﹣2又3/4)+(+0.125)+(﹣12又5/7)+(﹣4又1/8) 这道题怎么化简算?
求不定积分 (1) (2) (3) (4) (5) (6) (7) ; (8) (9) (10) (11) (12)
[1-(7/15+0.35*17/5)÷17/9】*25/8-11/12*(3/4-0.75)