Mrs. Gable's third grade class is on a field trip to the beach. For lunch, Mrs. Gable brought 20 lunches for the 20 students in her class. She included a pack of animal crackers in each lunch bag for dessert. Each pack of animal crackers contained 10 animal crackers. If 2 students did not eat their animal crackers, how many animal crackers were eaten in total among Mrs. Gable's students? Give the rationale and then the answer.
Let's think step by step. Since 2 students did not eat their animal crackers, 20 - 2 = 18 students ate their animal crackers. The students ate a total of 18 * 10 = 180 animal crackers.. The answer is: 180.

Evelyn's family watched 10 hours of television last week. The week before, they watched 8 hours of television. If they watch 12 hours of television next week, what is the average number of hours of television that they watch per week? Give the rationale and then the answer.
Let's think step by step. Over the three weeks, they will have watched a total of 10 + 8 + 12 = 30 hours of television. The average number of hours per week is 30 hours / 3 = 10 hours of television.. The answer is: 10.

Carla needs to drive her car to do a bunch of errands. She needs to drive 8 miles to the grocery store, 6 miles to pick up her kids from school, 12 miles to drop her kids off at soccer practice, and twice the distance from the school to soccer practice to get everyone home again. If Carla's car gets 25 miles per gallon, and gas costs $2.50, how much will Carla have to spend on gas for her trip? Give the rationale and then the answer.
Let's think step by step. First find the distance between soccer practice and home by multiplying the distance between soccer practice and school by 2: 12 miles * 2 = 24 miles. Then find the total distance Carla drives by adding the length of each trip: 24 miles + 12 miles + 6 miles + 8 miles = 50 miles. Then find how many gallons of gas she needs by dividing the distance of the trip by her car's gas mileage: 50 miles / 25 mpg = 2 gallons. Then multiple the gallons of gas by the price per gallon to find the total cost: 2 gallons * $2.50 = $5.. The answer is: 5.