What is #562,685,886+894,863,328#?

1 Answer
Jun 26, 2017

#562685886+894863328=1457549214#

Explanation:

To add two large integers like this, it is probably easiest to write one above the other and add column by column from the right...

#color(white)(0+)562685886#
#underline(color(white)(0)color(black)(+)894863328)#
#color(white)(+)1457549214color(white)(00) larr "result"#
#color(white)(+0)11color(white)(0)11color(white)(0)111color(white)(000) larr "carried digits"#

So:

#6+8+0 = 14" "# i.e. #4# and carry #1#
#8+2+1 = 11" "# i.e. #1# and carry #1#
#8+3+1 = 12" "# i.e. #2# and carry #1#
#5+3+1 = color(white)(0)9" "# i.e. #9# and carry #0#
#8+6+0 = 14" "# i.e. #4# and carry #1#
etc.