The expression 20 + 30 × 0 + 1 must be solved using the correct order of operations.
Complete the multiplication first:
30 × 0 = 0
The equation now becomes:
20 + 0 + 1
Add the remaining numbers:
20 + 0 + 1 = 21
The correct answer is 21.
Many people get this puzzle wrong because they add 20 and 30 before completing the multiplication.
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