动脑筋:9999×7778+3333×6666
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/21 09:45:31
![动脑筋:9999×7778+3333×6666](/uploads/image/z/7643965-13-5.jpg?t=%E5%8A%A8%E8%84%91%E7%AD%8B%3A9999%C3%977778%EF%BC%8B3333%C3%976666)
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动脑筋:9999×7778+3333×6666
动脑筋:9999×7778+3333×6666
动脑筋:9999×7778+3333×6666
9999×7778+3333×6666
=9999×7778+9999×2222
=9999×(7778+2222)
=9999×10000
=99990000
=9999×7778+9999×2222
=9999×(7778+2222)
=9999×10000
=99990000
计算机按一下
9999×7778+3333×6666
=9999×7778+(2222x3)x6666
=9999×7778+(3x6666)x2222
=9999×7778+9999×2222
=9999×(7778+2222)
=9999×10000
=99990000
这么 清晰应该能看懂
采纳我的亲