Richtig: 22+45=67, 108+66=174, 79+85=164, 1514+316=1830, 57+39=96, 81-69=12, 52-17=35, 96-43=53, 28-9=19, 53-37=16, Falsch: 22+45=50, 108+66=184, 79+85=165, 1514+316=1730, 57+39=98, 81-69=22, 52-17=47, 96-43=55, 28-9=9, 53-37=15,

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