1、75.6-35.6/0.89 2、2.5*3.1*1.2 3、(80.75/8.5+7.75)*3.2 4、25.8
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/10/07 00:27:38
1、75.6-35.6/0.89 2、2.5*3.1*1.2 3、(80.75/8.5+7.75)*3.2 4、25.8+3.76*0.5 5、10.8+32*2.5-10.8
1、 75.6-35.6/0.89
=75.6-40
=35.6
2、2.5*3.1*1.2
=2.5*1.2*3.1
=9.3
3、(80.75/8.5+7.75)*3.2
=(9.5+7.75)*3.2
=17.25*4*0.8
=69*0.8
=55.2
4、25.8+3.76*0.5
=25.8+1.88
=27.68
5、10.8+32*2.5-10.8
=32*2.5
=8*4*2.5
=8*10
=80
=75.6-40
=35.6
2、2.5*3.1*1.2
=2.5*1.2*3.1
=9.3
3、(80.75/8.5+7.75)*3.2
=(9.5+7.75)*3.2
=17.25*4*0.8
=69*0.8
=55.2
4、25.8+3.76*0.5
=25.8+1.88
=27.68
5、10.8+32*2.5-10.8
=32*2.5
=8*4*2.5
=8*10
=80
(80.75÷8.5+7.75)×3.2的简便算法
(80.75/8.5+7.75)*3.7=?
75.6-35.6÷0.89 怎样简算?
7.75-(4/7+3/5)=?
观察下面的数表[横排为行]1/1 2/1.1/2:1/3.2/2.1/3:4/1.3/2.2/3.1/4:5/1.4/2
3.1×1.2×0.5 (2.5-0.25)×0.4 5.6×
求比值:1.2:3分米 0.8:1.2 1/4:2.5
(3/4)-(1/2)+(+3/4)+(-8.5) 求解?
1.2(x+1)>3x-4 2.4-x-2(x+1)>11 3.2x+6≤5x
能简算要简算:7.8+2又1/4+2.2+7.75=?(50-40)÷0.5=?
(3.2*1.5+2.5)/1.6 6/4-1.6/4 6-1.19*3-0.43 3.2*(1.5+2.5)/1.6
找规律(1)1.2,2.5,3.8,()()(2)3,1.5,0.75,()