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How are basic facts can help you find 10*20*30*40 mentally
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How are basic facts can help you find 10*20*30*40 mentally

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

So that means 10 *20*30*40 = 1*2*3*4*10000 = 24*10000 = 240,000
User Alex Trevithick
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