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?
Jack had 13 more than 8 notebooks for a total of 13+8 = <<13+8=21>>21 notebooks
He gave 5 notebooks to Paula so he has 21-5 = <<21-5=16>>16 notebooks left
He gave another 6 to Mike so he has 16-6 = <<16-6=10>>10 notebooks left
#### 10