早教吧作业答案频道 -->数学-->
五道递等式计算(能简则简)(1)0.04+(7.38-4.8)/4.3(2)0.37*0.63+0.37*0.37(3)2.5*0.48*12.5(4)(4.5*60-27)/0.27(5)3.09/[(5.72-1.6*3.2)/0.4]
题目详情
五道递等式计算(能简则简) (1)0.04+(7.38-4.8)/4.3 (2)0.37*0.63+0.37*0.37 (3)2.5*0.48*12.5 (4)(4.5*60-27)/0.27 (5)3.09/[(5.72-1.6*3.2)/0.4]
▼优质解答
答案和解析
(1)0.04+(7.38-4.8)/4.3
=0.04+2.58/4.3
=0.04+0.6
=0.64
(2)0.37*0.63+0.37*0.37
=0.37x(0.63+0.37)
=0.37x1
=0.37
(3)2.5*0.48*12.5
=(2.5x0.6))x(12.5x0.8)
=1.5x10
=15
(4)(4.5*60-27)/0.27
=(270-27)/0.27
=270/0.27-27/0.27
=1000-100
=990
(5)3.09/[(5.72-1.6*3.2)/0.4]
=3.09/[(5.72-5.12)/0.4]
=3.09/1.5
=2.06
=0.04+2.58/4.3
=0.04+0.6
=0.64
(2)0.37*0.63+0.37*0.37
=0.37x(0.63+0.37)
=0.37x1
=0.37
(3)2.5*0.48*12.5
=(2.5x0.6))x(12.5x0.8)
=1.5x10
=15
(4)(4.5*60-27)/0.27
=(270-27)/0.27
=270/0.27-27/0.27
=1000-100
=990
(5)3.09/[(5.72-1.6*3.2)/0.4]
=3.09/[(5.72-5.12)/0.4]
=3.09/1.5
=2.06
看了五道递等式计算(能简则简)(1...的网友还看了以下：
0.8x+3.2=7.212.5-3x=6.556.4÷x+14.8=24.21.2（x-0.64 2020-05-16 …
0.37×0.27≈精确到0.001解方程:16X=7.2-8X28(X-9.4)=0.35×2递 2020-07-01 …
递等式计算，能简便的用简便方法计算0.25×1.7×0.44.5×10.21.28×7.5+2.5 2020-07-18 …
用递等式计算（能简算的要简便计算）0.175÷0.25×4．27.52-（7.7-2.48）+32 2020-07-18 …
前4题用竖式计算，后4题用递等式计算25.84÷1.7=9.25÷3.7=1÷125=1.4÷21 2020-07-19 …
按照找出的规律计算0.1+0.3+0.5+0.7+...+201.1+201.3等于多少?观察下面 2020-07-26 …
1.平方等于9的数是几?立方等于27的数是几?2.（1）计算0.1^2,1^2,10^2,100^ 2020-07-31 …
五道递等式计算(能简则简)(1)0.04+(7.38-4.8)÷4.3(2)0.37*0.63+0. 2020-11-26 …
乡村公路桥梁设计等级为-II级桥板长9米,宽1.2米,厚度0.45米,共3块.总长27米.请问设计荷 2020-12-01 …
1/6加上2/6等3/6,2/6等0.33..,1/6等0.16..,3/6等0.5,0.3..加0 2020-12-02 …