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89 + 67

new card

89 + 67

156

First, add the tens digits, 80 + 60 = 140. Remember that for a moment. Now, add the one's digits, 9 + 7 = 16. Now, add the 16 to the 140 to get 156. ---- Alternately, subtract one from 67 and give it to 89, so we have 90 + 66 = 156.

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89 + 67

89 + 67