简便计算(8十4o)x25,(125十25)x(8x4),34x102,72x125
答案:1 悬赏:50 手机版
解决时间 2021-11-13 04:36
- 提问者网友：原来太熟悉了会陌生
- 2021-11-12 12:59
简便计算(8十4o)x25,(125十25)x(8x4),34x102,72x125
最佳答案
- 五星知识达人网友：话散在刀尖上
- 2021-11-12 13:33
(8十4o)x25
=48x25
=12x4x25
=12x100
=1200;
(125十25)x(8x4)
=125x8x4+25x8x4
=1000x4+100x8
=4000+800
=4800;
34x102
=34x100+34x2
=3400+68
=3468;
72x125
=9x8x125
=9x1000
=9000.
供参考。
=48x25
=12x4x25
=12x100
=1200;
(125十25)x(8x4)
=125x8x4+25x8x4
=1000x4+100x8
=4000+800
=4800;
34x102
=34x100+34x2
=3400+68
=3468;
72x125
=9x8x125
=9x1000
=9000.
供参考。
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