###Human: Jack says he has 13 more notebooks in his bag than Gerald. Jack gives 5 notebooks to Paula and 6 notebooks to Mike. If Gerald has 8 notebooks, how many notebooks does Jack have left?, ### Assistant: Jack had 13 more than 8 notebooks for a total of 13+8 = 21 notebooks
He gave 5 notebooks to Paula so he has 21-5 = 16 notebooks left
He gave another 6 to Mike so he has 16-6 = 10 notebooks left 
 So the answer is :  10