750+708×32
253×203-103×253
3060÷36-322÷46
(25+73÷73+25)×101
3796÷52×26-1203
17×23+23×83.
750+708×32253×203-103×2533060÷36-322÷46(25+73÷73+25)×1013796÷52×26-120317×23+23×83.
答案:2 悬赏:20 手机版
解决时间 2021-01-20 04:43
- 提问者网友:我们很暧昧
- 2021-01-19 04:59
最佳答案
- 五星知识达人网友:轻雾山林
- 2020-07-15 01:38
解:(1)750+708×32,
=750+22656,
=23406;
(2)253×203-103×253,
=253×(203-103),
=253×100,
=25300;
(3)3060÷36-322÷46,
=85-7,
=78;
(4)(25+73÷73+25)×101,
=(25+1+25)×101,
=51×(100+1),
=51×100+51×1,
=5100+51,
=5151;
(5)3796÷52×26-1203,
=73×26-1203,
=1898-1203,
=695;
(6)17×23+23×83,
=(17+83)×23,
=100×23,
=2300.解析分析:(1)先算乘法,再算加法;
(2)(6)运用乘法分配律简算;
(3)先同时运算除法,再算减法;
(4)先算小括号里面的除法,再算小括号里面的加法,然后把101分解成100+1,再运用乘法分配律简算;
(5)先算除法,再算乘法,最后算减法.点评:本题考查了四则混合运算,注意运算顺序和运算法则,灵活运用所学的运算定律进行简便计算.
=750+22656,
=23406;
(2)253×203-103×253,
=253×(203-103),
=253×100,
=25300;
(3)3060÷36-322÷46,
=85-7,
=78;
(4)(25+73÷73+25)×101,
=(25+1+25)×101,
=51×(100+1),
=51×100+51×1,
=5100+51,
=5151;
(5)3796÷52×26-1203,
=73×26-1203,
=1898-1203,
=695;
(6)17×23+23×83,
=(17+83)×23,
=100×23,
=2300.解析分析:(1)先算乘法,再算加法;
(2)(6)运用乘法分配律简算;
(3)先同时运算除法,再算减法;
(4)先算小括号里面的除法,再算小括号里面的加法,然后把101分解成100+1,再运用乘法分配律简算;
(5)先算除法,再算乘法,最后算减法.点评:本题考查了四则混合运算,注意运算顺序和运算法则,灵活运用所学的运算定律进行简便计算.
全部回答
- 1楼网友:行路难
- 2019-06-08 08:18
谢谢了
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