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["数値１",12]
["数値２",4]
[]
["足し算"]
["引き算"]
["掛け算"]
["割り算"]
["べき算"]
["結合"]

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["九九の表"]
[null,1,2,3,4,5,6,7,8,9]
[1,1,2,3,4,5,6,7,8,9]
[2,2,4,6,8,10,12,14,16,18]
[3,3,6,9,12,15,18,21,24,27]
[4,4,8,12,16,20,24,28,32,36]
[5,5,10,15,20,25,30,35,40,45]
[6,6,12,18,24,30,36,42,48,54]
[7,7,14,21,28,35,42,49,56,63]
[8,8,16,24,32,40,48,56,64,72]
[9,9,18,27,36,45,54,63,72,81]