NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 1: Number System - Problems and SolutionsQuestion 121
Class 7 - Mathematics - Unit 1: Number System - Problems and Solutions
Question. 121
121. What’s the Error? Reeta evaluated \(−4 + d\) for \(d = −6\) and got \(2\). What did she do wrong?
Answer:
She took \(+ (−6)\) as \(+6\) instead of \(−6\).
Detailed Answer with Explanation:
Correct: \(−4 + (−6) = −10\).