早教吧作业答案频道 -->数学-->
1.4×2.5-1.95÷0.65 1.7×0.8×1.25 2.5×7.3＋1.7×2.5＋2.5 27×9.9 急
题目详情
1.4×2.5-1.95÷0.65 1.7×0.8×1.25 2.5×7.3＋1.7×2.5＋2.5 27×9.9
急
急
▼优质解答
答案和解析
1.4×2.5-1.95÷0.65
=(1+0.4)*2.5-1.95*100/65
=1*2.5+0.4*2.5+3
=2.5+1+3
=6.5
1.7×0.8×1.25
=1.7*(0.8*1.25)
=1.7*1
=1.7
2.5×7.3＋1.7×2.5＋2.5
=2.5*(7.3+1.7+1)
=2.5*10
=25
27×9.9
=27*(10-0.1)
=27*10-27*0.1
=270-2.7
=267.3
=(1+0.4)*2.5-1.95*100/65
=1*2.5+0.4*2.5+3
=2.5+1+3
=6.5
1.7×0.8×1.25
=1.7*(0.8*1.25)
=1.7*1
=1.7
2.5×7.3＋1.7×2.5＋2.5
=2.5*(7.3+1.7+1)
=2.5*10
=25
27×9.9
=27*(10-0.1)
=27*10-27*0.1
=270-2.7
=267.3
看了 1.4×2.5-1.95÷0...的网友还看了以下：
直接写出得数：0.5+0.4=0.90.9；1.4+2.7=4.14.1；8.2+3.7=11.9 2020-04-07 …
1、设p、q是两个数,规定：p△q=3×p-（p+q）÷2,求7△（2△4）2、如果1*5=1、设 2020-07-24 …
根据下列数列,各打一成语①35,35,35……②32,32.③1,3,5,7,9④2,4,6,8,1 2020-10-30 …
请根据下面数列,各打一成语.1.35,352.33,223.1,2,3,4,5,6,74.1,3,5 2020-10-30 …
分解因式(1)x^2-2x(2)ay^2+2ay+a(3)4a^2-8ab^2+12ab(4)a^2 2020-10-31 …
（2012•通川区模拟）直接写出得数．0.72÷0.09=25÷20%=98×101=398+199 2020-11-19 …
9个数7个一组能分成36组,例如1.2.3.4.5.6.71.3.4.5.6.7.8求列表这是我列出 2020-11-28 …
我是口算小能手130×5=2+0.85=0.6×0.5=2.6×0.3=4×0.5=3.08×4=3 2020-12-08 …
口算能手。3+5-4=9-4+3=7+3-5=6+2-2=4+1+3=10-3-7=8+1-4=5- 2020-12-08 …
已知U={1,2,3,4,5,6,7,8},A={1,3,5,7},B={2,4,5},则Cu（AU 2021-01-12 …