Subtracted World

I am the King and the Queen,
Of my subtracted world,
From my bedroom to where my smartphone takes me,
It’s shinning and laughing with glee.
Walking on the road, I hit a plastic bottle
‘High Score!’ cried my smartphone, when a little
Skinny girl pulled my sweater
Dirty hands open up, there was a letter
Crumpled, old and torn…ah, useless
I thought, but still checked it, to find two words
– Remember Addition?