Count to 10,000 and Down to -10,000

8168...

8167 (8+1+6+7 = 22....Am I right?)

8166 [(8-1)*6+6 = 8*6, check my math)

Excellento!

8165 (81-65+27*2+36-42/2 = 40)

8164 [8*(1+6-4)=24]

8163...(Bromine 79 [nearest] and Copper 63)

8162 (Rounding up, Krypton [83] and rounding down, Nickel [58])

8161..

8160 (Oh, here's a fun activity we did a while back on this one, I'll start a story, and you continue it...)

There once was a gorgeous elf who was best friends with ...

8159....tainaprincess. He was also friends with...

8158....a hideous gnome, who, unbeknownst to everyone, was secretly...

8157.

8156...

8155.

8154...