On Hand
The HP system has been simplified-- just multiply your pokemon's level by 10, and you'll have its HP. From there, simply add 10HP for each level it gains until it hits level 100 with a max of 1000HP.
Exp cheat sheet
Certain levels of pokemon give out a set number of experience. Please refer to this chart for that information.
1-3: 2 exp
4-7: 5 exp
8-12: 7 exp
13-18: 10 exp
19-25: 15 exp
26-34: 20 exp
35- 42: 25 exp
43-50: 30 exp
51-70: 35 exp
71+: 40 exp

lvl 10 Squirtle
HP 100
Torrent: When HP is below 1/3rd, Water type attacks will do x1.5 damage
Bold Nature
ç•Tackle: 50
~Tail Whip: Lower targets physical defense one stage
Water Gun: 40:

lvl10 Aerodactyl
HP: 100
Pressure: Intimidates the opponent to not use the same move consecutively. If a pokemon with Pressure is in the active party, the chances of encountering pokemon of the two strongest levels is increased by 50%. In general, this means rolling a six sided dice for pokemon levels so that 1 and 2 are the lower levels, and 3, 4, 5, and 6 are half the highest level and half the second highest.
Jolly Nature
ç•Iron Head: 80: 4/10 Chance to Flinch target
ç•Fire Fang: 65: 3/10 Chance to Flinch target, 4/10 Chance To Burn
•Sky Attack: 140: Charges on first turn, strikes the next turn; 4/10 Chance to Flinch target, 1/10 chance to critically hit
ç•Bite: 60: 4/10 Chance to Flinch target