Morgan goes to the drive-thru and orders his lunch. He gets a hamburger for $4, onion rings for $2 and a smoothie for $3. If he pays with a $20 bill, how much change does he receive?
Let's think: Morgan's lunch cost $4 + $2 + $3 = $9. If he pays with a $20 bill, he will receive change of $20 - $9 = $11.. The answer is: 11.

Bob grew corn in his garden this year and ended up with 50 bushels. This is way too much for him to eat, so he gave some of it away to his friends. His friend Terry took 8 bushels, while Jerry only took 3. He gave 12 bushels to his friend Linda, who runs a food pantry. His neighbor Stacy doesn't eat much corn, but she still accepted 21 ears of corn from him. If each bushel contained 14 ears of corn, how many ears of corn does Bob have left?
Let's think: Stacy took 21 ears of corn, there are 14 ears to a bushel, so she took 21 ears / 14 ears / bushel = 1.5 bushels of corn. In all, Bob gave away 8 bushels + 3 bushels + 12 bushels + 1.5 bushels = 24.5 bushels of corn. This leaves him with 50 bushels - 24.5 bushels = 25.5 bushels of corn. At 14 ears of corn per bushel, Bob has 25.5 bushels * 14 ears per bushel = 357 ears of corn.. The answer is: 357.

John gave his fiancee a $4000 ring on their engagement day, a $2000 car as a gift on their wedding day, and a diamond brace twice as expensive as the ring he gave her during the engagement. What's the worth of the presents John gave to her fiancee?
Let's think: If John gave his fiancee a $4000 ring on their engagement day, a $2000 car as a gift on their wedding day, the total cost for the two presents is $4000 + $2000 = $6000. He also gave his fiancee a diamond brace twice as expensive as the ring costing 2 * $4000 = $8000. The total worth of the presents John gave to his fiancee is $6000 + $8000 = $14000.. The answer is: 14000.

Jasmine and her older sister Alexa went to the store to buy shoes. Alexa's shoes are twice as big as Jasmine's shoes. If Jasmine's shoe size is 7, what's the combined shoe size for both of them?
Let's think:
If Alexa's shoes are twice those of Jasmine, then her shoe size is 7 * 2 = 14. The total shoe size is 14 + 7 = 21.. The answer is: 21.