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Adding for school

having trouble with adding come here i will help

QuestionAnswer
5+7= 12
6+9= 15
4,593,631+1,000,000= 5,593,631
183+72= 255
6,009+991= 7,000
87+54 191
999+1= 1,000
857+234= 1,091
454+545= 999
Created by: goodwind
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