###Human: Madeline wants to drink 100 ounces of water in a day. Her water bottle can hold 12 ounces of water. She refills her water bottle 7 times. How much more water does she need to drink?, ### Assistant: She has already had 12*7 =84 ounces of water.
She needs to drink 100-84 = 16 more ounces to make it to 100 ounces. 
 So the answer is :  16