(-11) × 7 is not equal to
a. 11 × (-7)
b. -(11 × 7)
c. (-11) × (-7)
d. 7 × (-11)
Solution:
To choose the correct option from the above listed options let us try solving the given expression using integer rules.
The expression (-11) × 7 on evaluating gives -77 as a final value. Now let us check the above mentioned options individually to jump to the conclusion
a) 11 × (-7) = -77
b) -(11 × 7) = -77
c) (-11) × (-7) = 77
d) 7 × (-11) = -77
On solving the given options we observe that the option c (-11) × (-7) = 77 is giving a different result. Therefore, (-11) × 7 is not equal to (-11) × (-7).
✦ Try This: Evaluate (-5) × (-77)
Using integer rules as well as the multiplication property of integers we can determine the value of (-5) × (-77)
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 1
NCERT Exemplar Class 7 Maths Chapter 1 Exercise Problem 12
(-11) × 7 is not equal to: 11 × (-7), -(11 × 7), (-11) × (-7), 7 × (-11)
Summary:
The expression (-11) × 7 on evaluating gives -77 as a final value. Therefore, from the given alternatives (-11) × 7 is not equal to (-11) × (-7)
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