Q. Find: (–31) × (–100), (–25) × (–72), (–83) × (–28)
We know,
Multiplication of two negative integers :
(A ×b) =ans
-(31) × -(100)
=31×100 =1300
-(25) ×-(72)
25×72 =1800
-(83)×-(28)
83×28 =2324
Therefore,
This is the answer
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