Answer:
9,008
Step-by-step explanation:
67 + 12 = 79
14 + 15 = 29
79 + 29 = 108
8,900 + 108 = 9,008
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9008
67+8,900= 8967
8967+12= 8979
8979+14 = 8993
8993+15=9008
