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RS Aggarwal Solutions Class 7 Mathematics Solutions for Integers Exercise 1B in Chapter 1 - Integers

Question 16 Integers Exercise 1B

(-7) ×(-3) ×4

Answer:

Solution:-

Using the rule for multiplication of integers.

In this question first, we have to multiply the integers with the same sign and then from the answer

that we get is multiplied with another integer of the different sign,

= {(-7×-3) ×4} … [∵(− × −= +)]

= {21×4}

=84

(In multiplication we have to multiply the sign of the integers also and then assign the obtained

sign to the answer)

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