好几个简便计算1.25×0.25×3232×9.1((1+0.12++0.23)×(0.12+0.23+0.34)-(1+0.12+0.23+0.34)×(0.12+0.23)
来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/24 07:23:32
好几个简便计算1.25×0.25×3232×9.1((1+0.12++0.23)×(0.12+0.23+0.34)-(1+0.12+0.23+0.34)×(0.12+0.23)好几个简便计算1.25×
好几个简便计算1.25×0.25×3232×9.1((1+0.12++0.23)×(0.12+0.23+0.34)-(1+0.12+0.23+0.34)×(0.12+0.23)
好几个简便计算
1.25×0.25×3232×9.1
(
(1+0.12++0.23)×(0.12+0.23+0.34)-(1+0.12+0.23+0.34)×(0.12+0.23)
好几个简便计算1.25×0.25×3232×9.1((1+0.12++0.23)×(0.12+0.23+0.34)-(1+0.12+0.23+0.34)×(0.12+0.23)
1)
1.25×0.25×3232×9.1
= 1.25×0.25×8×4×101×9.1
=(1.25×8)×(0.25×4)×(101×9.1)
=10×1×919.1
= 9191
2)
(1+0.12+0.23)×(0.12+0.23+0.34)-(1+0.12+0.23+0.34)×(0.12+0.23)
假设A = 0.12+0.23
原式 = (1+A)×(A+0.34)-(1+A+0.34)×A
= A×A+A+0.34A+0.34-A-A×A-0.34A
= 0.34
(1)=1.25*0.25*(101*4*8)*9.1=(1.25*8)*(0.25*4)*(101*9.1)=10*1*919.1=9191
(2)=(1+0.12+0.23)*[(0.12+0.23)+0.34]-[(1+0.12+0.23)+0.34]*(0.12+0.23)=(1+0.12+0.23)*0.34-0.34*(0.12+0.23)=0.34*1=0.34
好几个简便计算1.25×0.25×3232×9.1((1+0.12++0.23)×(0.12+0.23+0.34)-(1+0.12+0.23+0.34)×(0.12+0.23)
1.25×0.25×3.2简便计算
1.25×6.4×0.25简便计算.
求下几个简便计算的答案
56*1.25简便计算简便计算 拖式
3.57÷1.25简便计算简便计算~
0.25乘4.44简便计算还有 0.56乘1.25乘3简便计算 8.88乘1.25简便计算0.98乘7.4简便计算12.74乘7.4简便计算10.2乘7.4简便计算.快.
16*1.25-1.25/0.25的简便计算
(1.25+0.25)乘16 简便计算
64*1.25/0.25简便方法计算
简便方法计算0.25×1.25×320
0.25*1.25*320简便方法计算
0.25*1.25*4*0.8怎么简便计算
79×1.5-0.25×79+1.25 简便计算
0.48×0.25简便计算0.072*1.25
0.25×1.25×0.4×0.8简便计算
0.25×1.25×0.4×0.8怎么简便计算.
(0.25×1.25)×3.2用简便方法计算