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小遊戲：
https://wordwall.net/resource/26445201/6-2 小數的大小比較
https://wordwall.net/resource/26445475/6-3 小數的加減
https://wordwall.net/resource/26445653/7-1 1日是24小時
https://wordwall.net/resource/26447528/8-2 乘與除的應用
https://wordwall.net/resource/26447781/9-2 用平方公分板算面積
https://wordwall.net/resource/26448134/9-3 數格子算面積
