Aaron is gathering can lids to take to the recycling center. He uses 3 equal-sized boxes of canned tomatoes and adds the lids he gets to the 14 can lids he already has. He is now taking 53 can lids to the recycling center. How many cans lids did he get from each box?
Let's think: Calculating the difference between the can lids Aaron has now and the amount that he had initially shows there were 53 – 14 = 39 can lids in the boxes of canned tomatoes. As the boxes are the same size, splitting these can lids equally shows that there were 39 / 3 = 13 can lids in each box.. The answer is: 13.

Ms. Warren ran at 6 mph for 20 minutes. After the run, she walked at 2 mph for 30 minutes. How many miles did she run and walk in total?
Let's think: 20 minutes is 20 / 60 = 1 / 3 of an hour. Ms. Warren ran 6 / 3 = 2 miles. 30 minutes is 30 / 60 = 1 / 2 of an hour. Ms. Warren walked 2 / 2 = 1 mile. Ms Warren ran and walked 2 + 1 = 3 miles in total.. The answer is: 3.

Mike changes tires on different vehicles. He changes all the tires on 12 motorcycles and all the tires on 10 cars. How many tires did he change?
Let's think: He changed 12 * 2 = 24 motorcycle tires. He changed 10 * 4 = 40 car tires. So he changed 24 + 40 = 64 total tires.. The answer is: 64.

Jason is making a salad. The lettuce has 30 calories, the cucumber has 80 calories, and the 12 croutons have 20 calories each. How many calories are in the salad?
Let's think:
In total, the 12 croutons have 20 calories / crouton * 12 croutons = 240 calories. Together, the croutons, lettuce and cucumber have 240 + 30 + 80 = 350 calories.. The answer is: 350.