robertxcoolcool robertxcoolcool

09-10-2015
Mathematics

contestada

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

Respuesta :

09-10-2015

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

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

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