Evaluate: 100 – [30 – {20 – (15 – 3)}].

Topic: Simplification
Subtopic: Nested Brackets

A78

B82

C88

D92

Explanation

Innermost: 15 – 3 = 12. Next: 20 – 12 = 8. Next: 30 – 8 = 22. Final: 100 – 22 = 78.

Exam Relevance

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