[Question]Shelby had $20 to take to the book fair. She bought one book for $8 and another for $4. She decided to buy as many $4 posters as she could with the money she had left. How many posters can she buy?
[Answer]She spent $8 + $4 = $12 on books. She started with $20, so she has $20 - $12 = $8 left to spend on posters. Each poster costs $4, so she can buy $8 / $4 = 2 posters. The answer is 2.

[Question]Each bird eats 12 beetles per day, each snake eats 3 birds per day, and each jaguar eats 5 snakes per day. If there are 6 jaguars in a forest, how many beetles are eaten each day?
[Answer]First find the total number of snakes eaten: 5 snakes / jaguar * 6 jaguars = 30 snakes. Then find the total number of birds eaten per day: 30 snakes * 3 birds / snake = 90 snakes. Then multiply the number of snakes by the number of beetles per snake to find the total number of beetles eaten per day: 90 snakes * 12 beetles / snake = 1080 beetles. The answer is 1080.

[Question]Joan is preparing sandwiches for a family potluck. She decides to make ham sandwiches and grilled cheese sandwiches. One ham sandwich requires 2 slices of cheese, and one grilled cheese sandwich requires 3 slices of cheese. She uses a total of 50 slices of cheese to make the sandwiches. If she makes 10 ham sandwiches, how many grilled cheese sandwiches does she make?
[Answer]The number of cheese slices used to make the ham sandwiches is 10 * 2 = 20 cheese slices. The number of cheese slices used to make the grilled cheese sandwiches is 50 - 20 = 30 cheese slices. The number of grilled cheese sandwiches she makes is 30 / 3 = 10 grilled cheese sandwiches. The answer is 10.

[Question]Jeremy buys 3 bags of chips for a party. Stacy and Emily also buy chips for the party. If they need 10 bags of chips total, and Stacy buys 4 bags, how many bags of chips should Emily buy?
[Answer]
Jeremy and Stacy buy 3 + 4 = 7 bags of chips. Since there needs to be 10 total, Emily should buy 10 - 7 = 3 bags of chips. The answer is 3.