There are usually 36 number cards although in some decks there are 32 (the 10s are Ts).
there are 7 tenths in 275 or 2.75 10s
40
1000 of them.
2
30000 of them.
15
24 of them.
There are 5.6 of them.
There are 8 10s in 85, with 5 left over.
Many
43.2 tens.