Respuesta :

JeffTheSmartone2122
Welp... 840-56 is um.. 784        
840
56
{784}

•You borrow from the 4 changing it into a 3 putting 1 infront of the 0 changing into 10 so (10-6=4)
•now borrow again change 8 into 7 putting 1 infront of the 4 so(14-5=8)
•last drop the 7


Kinda hard to explain like this

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