數學題唔識做(快d)(在方格填加減乘除)

👨🏻‍🏫 學術台數學

2008-01-17 2:34 am

(1□9□9□2)×(1□9□9□2)×(19□9□2)＝1992
(在方格填加減乘除)

回答 (3)

2008-01-17 10:37 pm

✔ 最佳答案

(1x9x9+2)×(1x9-9+2)×(19-9+2)＝1992
(1×9-9+2)×(1+9×9+2)×(19-9+2)＝1992
Hope can help you!

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2008-01-17 3:13 am

(1×9-9+2)×(1+9×9+2)×(19-9+2)＝1992

參考: My brain~

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2008-01-17 3:13 am

(1 x 9 x 9 + 2) × (1x 9 - 9+ 2) × (19- 9+ 2)＝1992

I hope that I can help you ^ ^

參考: myself ~

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收錄日期: 2021-04-19 01:31:33
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