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08-10-2015
Mathematics

Answered

how are basic facts can help you find 102030*40 mentally

Verified Answer :

08-10-2015

When you do the multiplication you can notice that 10, 20, 30, 40 all have 0's at the end.

So that means 10 203040 = 123410000 = 2410000 = 240,000

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