“Can you pass me the bag of plastic blocks?”
Not
“Can you pass me the bag of Legos”
If you wanted a box of adhesive bandages. You’d say “Can you pass me the box of band-aids?” or a tissue, “Can you pass me a kleenex?”
Companies do not want their brand to become generic trademarks.
It’s not because Lego is already pural
“I have many Lego blocks”
Not
“I have many Lego”
7+6
You need 3 to get to 10. 3 left over. 10+3=13.
I’d split up the 6 into (3,3) in my head
Same thing as 7+3+3