Question

evaluate by multiplying directly
1. 103×107
2.95×96
3.104×96

Answer 1

Hi nice question!!

1) answer:)

given
103×107
now
(100+3)×(100+7)
=(100)^2+700+300+21
=10000+1000+21
=11021

2) given,

95×96
now
=(100-5) (100-4)
=(100)^2-400-500+20
=10000-900+20
=9120

3) answer:)

104×96
now,
(100+4) (100-4)
=(100)^2-(4)^2
=10000-16
=9984

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