Correct: 5+5=10, 11x3=33, 35-19=16, 23+16=39, 72/8=9, 15x5=75, 19+8=27, 81/9=9, 28+15=43, 43-16=27, Incorrect: 9-5=5, 7x7=42, 81/9=7, 16-8=7, 81/9=8, 49/7=6, 35+14=50, 52-18=35, 12x3=35, 36-12=14,

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