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數字照鏡

數字照鏡. 有些數字像在照鏡一樣，無論左至右或右至左看都是一樣的 ……. 31 5 13. 213 8 312. 6 36. 7 9 97. 10 01. 數字照鏡. 怎樣將這些數字變成像在照鏡一樣？ 為每一數字寫出至少兩個做法。. 47274. 5252525. 472. 5252. 472274. 52522525. 4729274. 525212525. 989. 12021. 323262323. 98. 32326. 1 2 0. 9889. 3232662323. 120021. 98089. 1208021.

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數字照鏡

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  1. 數字照鏡 有些數字像在照鏡一樣，無論左至右或右至左看都是一樣的…… 31513 2138312 636 7997 1001

  2. 數字照鏡 怎樣將這些數字變成像在照鏡一樣？ 為每一數字寫出至少兩個做法。 47274 5252525 472 5252 472274 52522525 4729274 525212525 989 12021 323262323 98 32326 120 9889 3232662323 120021 98089 1208021 32326162323

  3. 數字照鏡 一個數字倒置後加上，重複數次後便可得到照鏡一樣的結果。 472 472+274 =746 =1393 746+647 =5324 1393+3931 9559 照鏡！ 5324+4235 =9559

  4. 數字照鏡 • 「數字照鏡」遊戲規則 • 4 人一組，使用計算機。 • 各人將自己出生月日砌成一個多位數 mmdd 或 mdd。 • 將數字順序倒置，並使用計算機，加上原本的數字。 • 重複以上步驟，並記錄計算結果。 • 看看要多少次後才出現「照鏡」的數字。 • 與同學比較彼此的數字結果。 • 限時 10 分鐘。 遊戲時間  要多少次倒置相加，數字才變成 「照鏡」？

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