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10 questions
Calcula: 326 - 12 =
Calcula: 279 - 12 =
Calcula: 641 - 12 =
Calcula: 472 - 22 =
Calcula: 516 - 22 =
Calcula: 351 - 32 =
Calcula: 375 - 32 =
Calcula: 514 - 22 =
Calcula: 179 - 42 =
Calcula: 549 - 12 =
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