早教吧作业答案频道 -->数学-->
计算下列各题,能简算的要简算0.23×74%+0.23×26%;(1112-34)÷(1-12);34×23÷311;1748×49.
题目详情
计算下列各题,能简算的要简算
0.23×74%+0.23×26%; (
-
)÷(1-
);
×
÷
;
×49.
0.23×74%+0.23×26%; (
11 |
12 |
3 |
4 |
1 |
2 |
3 |
4 |
2 |
3 |
3 |
11 |
17 |
48 |
▼优质解答
答案和解析
(1)0.23×74%+0.23×26%
=0.23×(74%+26%)
=0.23×1
=0.23;
(2)(
-
)÷(1-
)
=
÷
=
;
(3)
×
÷
=
÷
=
;
(4)
×49
=
×(48+1)
=
×48+
×1
=17+
=17
.
=0.23×(74%+26%)
=0.23×1
=0.23;
(2)(
11 |
12 |
3 |
4 |
1 |
2 |
=
1 |
6 |
1 |
2 |
=
1 |
3 |
(3)
3 |
4 |
2 |
3 |
3 |
11 |
=
1 |
2 |
3 |
11 |
=
11 |
6 |
(4)
17 |
48 |
=
17 |
48 |
=
17 |
48 |
17 |
48 |
=17+
17 |
48 |
=17
17 |
48 |
看了 计算下列各题,能简算的要简算...的网友还看了以下:
(2013•绥阳县模拟)脱式计算4.2÷1.5-1.5×0.6[1-(12-14)]×23(12- 2020-04-07 …
关于二次根式的问题1:已知b²+4+根号a-1=4b,求a,b的值2:计算:(4+2根号3)(2- 2020-04-27 …
巧算:8.7*9.9.((4.8*7.5*8.1)÷((2.4*2.5*2.7).简算::4.巧算 2020-06-11 …
计算4.2÷0.35时,先将除数与被除数的小数点同时向移动位,转化成÷后再计算,商是. 2020-07-13 …
如何计算4√2+4 2020-07-20 …
(ps:a^2为a的平方,1/4就是四分之一)某同学在计算3(4+1)(4^2+1)时,把3写成4 2020-08-02 …
1.求隐函数x+y^2-e^(xy)=siny的倒数dy/dx2.计算√4.2的近似值(根号下4. 2020-08-02 …
某同学在计算3(4+1)(4^2+1)时,把3写成(4-1)后,得3(4+1)(4^2+1)=(4- 2020-11-07 …
定义新运算我们用△表示一种新运算符号,a△b=3a-2b,例如:5△2=3×5-2×2=15-4=1 2020-11-28 …
计算(3*5)^2与3^2*5^2与[(-1/2)*4]^2与(-1/2)^2*4^2两个算式的计算 2020-12-09 …