Question

How do you solve 840 - 56

Answer 1

Welp... 840-56 is um.. 784        

Answer 2

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