Insert two operators — Make 65 ▢ 40 ▢ 11 equal 36 by choosing the correct pair of signs

Difficulty: Easy

Correct Answer: - and +

Explanation:


Introduction / Context:
We choose two operators to achieve 36. Consider subtraction then addition to pull 65 down towards 36.


Given Data / Assumptions:

  • Expression: 65 ▢ 40 ▢ 11 = 36.


Concept / Approach:
Try 65 − 40 + 11 = 36.


Step-by-Step Solution:

Compute: 65 − 40 + 11 = 25 + 11 = 36.


Verification / Alternative check:
Other operator pairs overshoot or undershoot the target.


Why Other Options Are Wrong:

  • They fail to evaluate to 36 under standard precedence.


Common Pitfalls:

  • Trying multiplication/division first, which pushes the value far from 36.


Final Answer:
- and +

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