Correct: 6+4 =10, 2+8=10, 5+5=10, 3+2=5, 8+1=9, 7-3=4, 6-2=4, 10-7=3, 5-3=2, 8-4=4, 9-5=4, 9-4=5, 6+3=9, 5+4=9, , Incorrect: 6+4=7, 2+8=5, 5+5=9, 3+2=9, 8+1=7, 7-3=6, 6-2=1, 10-7=10, 5-3=1, 9-5=3, 9-4=2, 6+3=7, 5+5=6, ,

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