0
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10 + 3 + 412 - 10 = 415
415
7
10 + 7 + 3 = 20
54 + 3 + 10 = 67
10+11+9+3= 33
10020 plus 10-3 plus 8 is equal to 10,035
30/3=10
-13
7+3+10 = 20
x + 3 + 10 = x + 13
-2 + 10 - 8 + 4 - 3 + 2 = 3
10 plus 20-2 - 11 plus 3 is equal to 20.
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