8 + ( ) = 11 - 3, 5 + ( ) = 12 - 7, ( ) + 5 = 15 - 10, ( ) + 13 = 17 - 4, 8 + ( ) = 13 - 5, ( ) + 6 = 15 - 9, 8 + ( ) = 16 - 8, ( ) + 15 = 26 - 11, 14 + ( ) = 20 - 6, ( ) + 12 = 29 - 17,

Addition with Bracket

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