Question: Angela slept 6.5 hours every night in December. She decided she should get more sleep and began sleeping 8.5 hours a night in January. How much more sleep did Angela get in January?
Answer: Angela slept 8.5 6.5 = 2 more hours each night in January. There are 31 days in December and January, so Angela 2 x 31 = 62 more hours sleep. The answer is 62.

Question: There were 8000 jelly beans in a certain barrel, and 10 people lined up to take some. The first six people each took twice as many jelly beans as each of the last four people took. If the last four people each took 400 jelly beans, how many jelly beans remained in the container?
Answer: If the last four people each took 400 jelly beans, they took a total of 4 * 400 = 1600 jelly beans. The first six people each took twice as many jelly beans as each of the last four people took, meaning each of them took 2 * 400 = 800 jelly beans. The total number of jelly beans the first six people took is 800 * 6 = 4800 jelly beans. Together, all 10 people took together 4800 + 1600 = 6400 jelly beans. If there were 8000 jelly beans in a certain barrel, the number of jelly beans that remained is 8000 - 6400 = 1600. The answer is 1600.

Question: Ariel is collecting fish. She has 45 fish. 2/3 are male. How many female fish does she have?
Answer: 1 / 3 of her fish are female because 1 - (2 / 3) = 1 / 3. She has 15 female fish because 45 x (1 / 3) = 15. The answer is 15.

Question: Carl buys index cards for his class. He gives each student 10 index cards. He teaches 6 periods a day and each class has 30 students. If a 50 pack of index cards cost $3 how much did he spend on them all?
Answer:
He has 30 * 6 = 180 students. So he needs to buy 180 * 10 = 1800 index cards. That means he needs to buy 1800 / 50 = 36 packs of index cards. So he spends 36 * 3 = $108. The answer is 108.