NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 1: Number System - Multiple Choice QuestionsQuestion 13
Class 7 - Mathematics - Unit 1: Number System - Multiple Choice Questions
Question. 13
\((-10)\times(-5)+(-7)\) is equal to
(a)
–57
(b)
57
(c)
–43
(d)
43
Detailed Answer with Explanation:
First, multiply. A negative × a negative gives a positive.
\((-10)\times(-5)=+50\)
Now add \(+50\) and \(-7\).
\(50+(-7)=50-7\)
\(=43\)
So, the value is \(43\). (Option d)