Bedtime Math—W: Mommy, how many hours are in a day and in a night. L: It’s about 12 each. W: So 24hrs total. L: Yes. W: 24+24 is 48, right? L: Yep! Can you do 24+24+24? W: Hmmmmm.it’s 24 more than 48 so.hmmmm.sixty twelve?! L: Yes, but what is sixty twelve? W: 71 L: Close W: 72! L: Yep!