Integers | Integers Exercise 1B

Question

(-6) ×(-5) ×(-7) ×(-2) ×(-3)

Accepted Answer

Solution:-

Using the rule for multiplication of integers.

In this question we have five integers of the same sign, so multiply tow integers once and then from

the answers of both sets of integers again multiplied and get the final answer.

= {(-6×-5) ×(-7×-2) ×(-3)} … [∵(− × −= +)]

= {(30) ×(14) ×(-3)}

= {(30 ×14) ×(-3)}

= {(420×-3)} … [∵ (+ × −= −)]

= -1260

Question 19