早教吧作业答案频道 -->数学-->
用简便方法计算.256+982000-586-11455×25+25×45(40+4)×25.
题目详情
用简便方法计算.
256+98
2000-586-114
55×25+25×45
(40+4)×25.
256+98
2000-586-114
55×25+25×45
(40+4)×25.
▼优质解答
答案和解析
(1)256+98
=256+(100-2)
=(256+100)-2
=356-2
=354;
(2)2000-586-114
=2000-(586+114)
=2000-700
=1300;
(3)55×25+25×45
=(55+45)×25
=100×25
=2500;
(4)(40+4)×25
=40×25+4×25
=1000+100
=1100.
=256+(100-2)
=(256+100)-2
=356-2
=354;
(2)2000-586-114
=2000-(586+114)
=2000-700
=1300;
(3)55×25+25×45
=(55+45)×25
=100×25
=2500;
(4)(40+4)×25
=40×25+4×25
=1000+100
=1100.
看了 用简便方法计算.256+98...的网友还看了以下:
计算下面各题.(能简便计算的要简便计算)4.2×(6.18-3.03)4.5÷1.85.4×12- 2020-04-07 …
谁帮我算5道简便计算和2道解方程?简便运算:1.27×26分之25=2.3.5×1又4分之1+1又 2020-05-16 …
4/5+14/5x4/76÷2/3+2/3÷635又7/11÷79/11÷8-5/11x1/82/ 2020-05-17 …
1、用简直便算法计算下面各题。2/9-7/16×2/9。2/5×4×3/4。5/7×16×211、 2020-06-11 …
数学高手进!1又4分之1×17.6+36÷5分之4+2.64×12.5,简便运算;1999又199 2020-07-17 …
最好列式!能简便的要简便!4/5×3/4--4/5÷475×7/8+25÷8/799×99/100 2020-07-18 …
这些怎么算.265÷3/4+578×3/4+157÷3/4(5/7+5/9+5/12)÷(1/7+ 2020-07-18 …
下列各题的简便运算分别运用了什么运算律或运算性质?1.78×9.9=78×(10-0.1)=78× 2020-07-31 …
1/4+3/5÷4+1/4×2/5的简便运算(0.36-1/5)×(3/4+1/2)的简便运算1/4 2020-11-16 …
5道简便运算题能简便的就简便计算要有算式与题目(1)(3/4÷3/5+1/4)×6/13(2)35÷ 2021-01-02 …