Answer:
22
Explanation:
2 + 3 + 8 + 1 + 9 + 10 - 11 +10 = ? can be evaluated from left to right, as follows:
5 + 8 + 1 + 9 + 10 - 11 +10 = ?
13 + 10 - 11 + 10, or
23 - 11 + 10, or
12 + 10, or
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