34*11 34*36 3*52 34如何巧算?
答案:1 悬赏:50 手机版
解决时间 2021-11-22 20:14
- 提问者网友:暗中人
- 2021-11-22 10:25
34*11 34*36 3*52 34如何巧算?
最佳答案
- 五星知识达人网友:患得患失的劫
- 2021-11-22 11:43
34x11
=34x(10+1)
=34x10+34x1
=340+34
=374
34x36
=34x(40-4)
=34x40-34x4
=1360-136
=1224
3x5234
=3x(5000+200+30+4)
=3x5000+3x200+3x30+3x4
=15000+600+90+12
=15702
=34x(10+1)
=34x10+34x1
=340+34
=374
34x36
=34x(40-4)
=34x40-34x4
=1360-136
=1224
3x5234
=3x(5000+200+30+4)
=3x5000+3x200+3x30+3x4
=15000+600+90+12
=15702
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