Math, asked by manush65, 6 months ago

find each of the following
(-21)×(-30)=630
please explain the answer

Answers

Answered by zareenquadri

1

Minus, minus cancelled
So 30 x 21
Answer 630

Answered by cinderella151

46

Answer:

when (-)×(-)=(+)

so,(-21)×(-30)=630

630=630

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