105×135-105×35
Using integer property
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the answer of this question is 10500
Answered by
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Answer:
(100+5) (130+5) -(100+5) (30+5)
5^2+ (100 +130)5+100*130 -[ 5^2 +(100 +30)5 +100*30]
25+(230)5 +13000 -(25 +130*5 +3000)
25 + 1150 +13000 -(25+650 +3000)
14175 -(3675)
14175 -3675
10500
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