Question

Insert parentheses to make these equalities correct
1+2·3+4·5=65

Answer 1

((1+2)*3+4)*5

Explanation:

1+2×3+4×5=65

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• ((1+2)×3+4)×5=
• (3×3 + 4)×5 =
• (9 + 4)×5 =
• 13×5 = 65