99×101335+270+130+265625-180-22535×99+35175×55+25×5550×25×20×40.
答案:2 悬赏:30 手机版
解决时间 2021-12-26 10:20
- 提问者网友:几叶到寒
- 2021-12-25 16:46
99×101335+270+130+265625-180-22535×99+35175×55+25×5550×25×20×40.
最佳答案
- 五星知识达人网友:行雁书
- 2021-12-25 17:50
解:(1)99×101,
=99×(100+1),
=99×100+99,
=9900+99,
=9999;
(2)335+270+130+265,
=(335+265)+(270+130),
=600+400,
=1000;
(3)625-180-225,
=(625-225)-180,
=400-180,
=220;
(4)35×99+35,
=35×(99+1),
=35×100,
=3500;
(5)175×55+25×55,
=(175+25)×55,
=200×55,
=200×(50+5),
=1000+100,
=1100;
(6)50×25×20×40,
=(50×20)×(25×40),
=1000×1000,
=1000000.解析分析:(1)把101看做100+1,运用乘法分配律简算;(2)(3)运用加法交换律与结合律简算;(4)(5)运用乘法分配律简算;(6)运用乘法交换律与结合律简算.点评:完成本题要注意分析式中数据,运用合适的简便方法计算.
=99×(100+1),
=99×100+99,
=9900+99,
=9999;
(2)335+270+130+265,
=(335+265)+(270+130),
=600+400,
=1000;
(3)625-180-225,
=(625-225)-180,
=400-180,
=220;
(4)35×99+35,
=35×(99+1),
=35×100,
=3500;
(5)175×55+25×55,
=(175+25)×55,
=200×55,
=200×(50+5),
=1000+100,
=1100;
(6)50×25×20×40,
=(50×20)×(25×40),
=1000×1000,
=1000000.解析分析:(1)把101看做100+1,运用乘法分配律简算;(2)(3)运用加法交换律与结合律简算;(4)(5)运用乘法分配律简算;(6)运用乘法交换律与结合律简算.点评:完成本题要注意分析式中数据,运用合适的简便方法计算.
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- 1楼网友:孤老序
- 2021-12-25 18:02
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