早教吧作业答案频道 -->其他-->
(2012•慈溪市)①0.65×6.4-6.5×0.54+65×9%②12.5×0.56+1.4÷25③12+56+1112+1920+2930+4142+5556+7172+8990.
题目详情
(2012•慈溪市)①0.65×6.4-6.5×0.54+65×9%
②12.5×0.56+1.4÷
③
+
+
+
+
+
+
+
+
.
②12.5×0.56+1.4÷
2 |
5 |
③
1 |
2 |
5 |
6 |
11 |
12 |
19 |
20 |
29 |
30 |
41 |
42 |
55 |
56 |
71 |
72 |
89 |
90 |
▼优质解答
答案和解析
(1)0.65×6.4-6.5×0.54+65×9%,
=0.65×6.4-0.65×5.4+0.65×9,
=0.65×(6.4-5.4+9),
=0.65×10,
=6.5;
(2)12.5×0.56+1.4÷
,
=7+3.5,
=10.5;
(3)
+
+
+
+
+
+
+
+
,
=
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
,
=1+1+1+1+1+1+1+1+
,
=8
.
=0.65×6.4-0.65×5.4+0.65×9,
=0.65×(6.4-5.4+9),
=0.65×10,
=6.5;
(2)12.5×0.56+1.4÷
2 |
5 |
=7+3.5,
=10.5;
(3)
1 |
2 |
5 |
6 |
11 |
12 |
19 |
20 |
29 |
30 |
41 |
42 |
55 |
56 |
71 |
72 |
89 |
90 |
=
1 |
2 |
1 |
2 |
1 |
3 |
2 |
3 |
1 |
4 |
3 |
4 |
1 |
5 |
4 |
5 |
1 |
6 |
5 |
6 |
1 |
7 |
6 |
7 |
1 |
8 |
7 |
8 |
1 |
9 |
8 |
9 |
1 |
10 |
=1+1+1+1+1+1+1+1+
1 |
10 |
=8
1 |
10 |
看了 (2012•慈溪市)①0.6...的网友还看了以下:
探究题:(x-1)(x+1)=x^2-1(x-1)(x^2+x+1)=x^3-1探究题:(x-1)( 2020-03-30 …
1/1,-1/2,-2/1,1/3,2/2,1/3,-1/4,-2/3,-3/2,-4/1,1/5 2020-04-09 …
分式求和问题1/(2^k+1)+1/(2^k+2)+…+1/2^(k+1)为什么1/(2^k+1) 2020-04-26 …
S=(1+1/1*2+(2+1/2*3)+(3+1/3*4)+...+(20+1/20*21)S= 2020-04-27 …
1/2*101/100=101/200这一步是因为什么这么做的?原题是1-1/2^2)(1-1/3 2020-05-14 …
谁会用MATLAB计算 权向量矩阵是A=[1,1/2,3,1,6,8,9,1/2 2,1,5,2, 2020-05-15 …
因为:1³=1×1×1=1 2³=2×2×2=8 1³+2³=1+8=9 (1+2)²=3×3=9 2020-05-16 …
设Tn=1/2^0+2/2+3/2^3+…+n/2^(n-1)(1)(1/2)*(1)得:(1/2 2020-06-02 …
在○里填上适当的运算符合,使等式成立(1)1/2○1/2○1/2○1/2○1/2=0(2)1/2○ 2020-07-08 …
如果设y=x^2/1+x^2=f(x),并且(f)表示当x=1时,y的值,既f(1)=1^2/1^2 2021-02-05 …