Q: Holly loves to drink chocolate milk. With breakfast, she drinks 8 ounces of chocolate milk before leaving for work. During her lunch break, she buys a new 64-ounce container of chocolate milk and then drinks 8 ounces of it. With dinner, she drinks another 8 ounces of chocolate milk. If she ends the day with 56 ounces of chocolate milk, how many ounces of chocolate milk did she begin the day with?
A: 16
Explain how we arrive at this answer:
Explanation: Before dinner, she had 56 + 8 = 64 ounces of CM. Before drinking 8 ounces of CM during lunch, she had 64 + 8 = 72 ounces of CM. Before buying 64 ounces of CM, she had 72 - 64 = 8 ounces of CM. And before breakfast, she had 8 + 8 = 16 ounces of chocolate milk.