1、34.5*8.23-34.5+2.77*34.5
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/07/19 14:52:14
1、34.5*8.23-34.5+2.77*34.5
2、0.9999*0.7+0.1111*2.7
3、4.75-9.63+(8.25-1.37)
4、17.48*37-174.8*2.7
5、50/2.5+1.8*4.5
6、6.87*[40/(3.49-3.09)]
2、0.9999*0.7+0.1111*2.7
3、4.75-9.63+(8.25-1.37)
4、17.48*37-174.8*2.7
5、50/2.5+1.8*4.5
6、6.87*[40/(3.49-3.09)]
1、34.5*8.23-34.5+2.77*34.5
=34.5*(8.23+2.77-1)
=34.5*10
=345
2、0.9999*0.7+0.1111*2.7
=0.1111*9*0.7+0.1111*2.7
=0.1111*6.3+0.1111*2.7
=0.1111*(6.3+2.7)
=0.1111*10
=1.111
3、4.75-9.63+(8.25-1.37)
=4.75-9.63+8.25-1.37
=4.75+8.25-1.37-9.63
=13-11
=2
4、17.48*37-174.8*2.7
=17.48*37-17.48*27
=17.48*(37-27)
=17.48*10
=174.8
5、50/2.5+1.8*4.5
=20+9/5*9/2
=20+81/10
=20+0.81
=28.1
6、6.87*[40/(3.49-3.09)]
=6.87*[40/0.4]
=6.87*[40/(2/5)]
=6.87*40*5/2
=6.87*20*5
=6.87*100
=687
=34.5*(8.23+2.77-1)
=34.5*10
=345
2、0.9999*0.7+0.1111*2.7
=0.1111*9*0.7+0.1111*2.7
=0.1111*6.3+0.1111*2.7
=0.1111*(6.3+2.7)
=0.1111*10
=1.111
3、4.75-9.63+(8.25-1.37)
=4.75-9.63+8.25-1.37
=4.75+8.25-1.37-9.63
=13-11
=2
4、17.48*37-174.8*2.7
=17.48*37-17.48*27
=17.48*(37-27)
=17.48*10
=174.8
5、50/2.5+1.8*4.5
=20+9/5*9/2
=20+81/10
=20+0.81
=28.1
6、6.87*[40/(3.49-3.09)]
=6.87*[40/0.4]
=6.87*[40/(2/5)]
=6.87*40*5/2
=6.87*20*5
=6.87*100
=687
34.5*8.23-34.5+27.7*3.45简便算法
34.5×9.23-34.5+1.77×34.5.
用运算律简算 34.5乘8.23减34.5加27.7乘3.45
简便计算. 15.6789÷20÷5 2.8×23.4+11.1×57.6+6.54×28 34.5×8.23-34.5
4.28*34.5+3.45*57.72如何简算
北纬34.5度东经43.58度具体位置
34.5*76.5-345*6.42-123*1.45
无缝钢管34.5-6-8是啥意思
80-3.5x=34.5如何解
(42.41+34.5)/(14.75-12.25)
巧算:(100+12.3+23.4)×(12.3+23.4+34.5)-(100+12.3+23.4+34.5)×(12
请问“34.5乘76.5--34.5乘6.42-123乘1.45”怎样才能简便计算