Verdadero: 25+25=50, 20+20=40, 35+15=50, 12+8=20, 9+9=18, 7+13=20, 7+8=15, 30+40=70, 4+5=9, 9+6=15, Falso: 9+9=16, 15+15=20, 25+25=55, 8+8=18, 2+3=6, 5+6=12, 12+12=22, 10-4=8, 20-10=30, 12-6=8,

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