计算下面各题,能简算的要简算 :51.3÷0.27+10.1
题目
计算下面各题,能简算的要简算 :51.3÷0.27+10.1
(2)0.72÷【(0.3+0.2)*0.6】
(3)3.75÷【0.2*(0.74-0.24)】
(4)7.28+0.94+2.72+0.06
(5)7.84+0.73-0.84
(6)0.45*9.6÷1.2
(7)7.8÷【1.45-(0.4+0.05)】
(8)2.31*1.2*0.5
(9)0.85*(4.2-0.4)-0.23
(10)1.6+0.4-1.6+0.4
(11)78.4÷(0.7+4.2÷6)
(12)62.8÷2.5÷0.4
(13)110*0.1-1.4
(14)12.4÷0.4+5.6*2
(15)8.5÷4+1.5*0.25
答案
(1)51.3÷0.27+10.1
=51.3×0.3×0.9+10.1
=171÷0.9+10.1
=190+10.1
=200.1
(2)0.72÷【(0.3+0.2)*0.6】
=0.72÷【0.5×0.6】
=0.72÷0.3
=2.4
(3)3.75÷【0.2*(0.74-0.24)】
=3.75÷【0.2*0.5】
=3.75÷0.1
=37.5
(4)7.28+0.94+2.72+0.06
=(7.28/+2.72)+(0.94+0.06)
=10+1
=11
(5)7.84+0.73-0.84
=7.84-0.84+0.73
=7+0.73
=7.73
(6)0.45*9.6÷1.2
=0.45*(9.6÷1.2)
=0.45*8
=3.6
(7)7.8÷【1.45-(0.4+0.05)】
=7.8÷【1.45-0.45】
=7.8÷1
=7.8
(8)2.31*1.2*0.5
=2.31*(1.2*0.5)
=2.31*0.6
=1.386
(9)0.85*(4.2-0.4)-0.23
=0.85*3.8-0.23
=3.23-0.23
=3
(10)1.6+0.4-1.6+0.4
=(1.6-1.6)+(0.4+0.4)
=0+0.8
=0.8
(11)78.4÷(0.7+4.2÷6)
=78.4÷(0.7+0.7)
=78.4÷1.4
=56
(12)62.8÷2.5÷0.4
=62.8÷(2.5×0.4)
=62.8÷1
=62.8
(13)110*0.1-1.4
=11-1.4
=9.6
(14)12.4÷0.4+5.6*2
=31+11.2
=42.3
(15)8.5÷4+1.5*0.25
=(8.5+1.5)*0.25
=10*0.25
=2.5
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
- 1升等于多少克?
- 1.已知函数f(x)=ln(2-x)+ax
- 环己烷和乙烯是不是同分异构体
- 我和书的故事,450字以上,急
- 1/4r×1/4r×3.14×h如何算啊?请把计算过程列出来
- 某电路外电阻为10Ω,电路中电流为0.4A,已知电源的短路电流是1.5A,则电源的电动势E=_V,内电阻R1=_Ω.
- i can see a sun some and in the sky
- (1乘2乘3分之4)+(2乘3乘4分之4)~(1990乘1991乘1992分之4)
- 取碳酸钠和氯化钠的固体混和物13.6g,与10%的稀盐酸73g恰好完全反应.请问一下混合物中碳酸钠的质量分数?
- 一个圆与一个长方形的面积相等,圆的半径是2厘米,长方形的长是4厘米,宽是()厘米
热门考点