Question: John was 66 inches tall. He had a growth spurt and grew 2 inches per month for 3 months. How tall is he in feet?
Answer: Step-by-step reasoning process: He gained 2 * 3 = 6 inches. So his height is 66 + 6 = 72 inches. So he is 72 / 12 = 6 feet tall.
So the answer is 6.

Question: Quinten sees three buildings downtown and decides to estimate their heights. He knows from a book on local buildings that the one in the middle is 100 feet tall. The one on the left looks like it is 80% of the height of the middle one. The one on the right looks 20 feet shorter than if the building on the left and middle were stacked on top of each other. How tall does Quinten estimate their total height to be?
Answer: Step-by-step reasoning process: He estimates the building on the left is 80 feet tall because 100 x .8 = 80. The combined height of the left and middle is 180 because 100 + 80 = 180. The building on the right he estimates as 160 feet because 180 - 20 = 160. He estimates the combined height as 340 feet because 80 + 100 + 160 = 340.
So the answer is 340.

Question: Tina is working on her homework when she realizes she's having a hard time typing out her answers on her laptop because a lot of the keys are sticky. She is trying to get her homework done before dinner, though, so she needs to decide if she has time to clean her keyboard first. Tina knows her assignment will only take 10 minutes to complete. Dinner will be ready at 5:30 p.m. Tina decides to time how long it takes to remove and clean one key and will then multiply that time by how many keys she needs to fix. She counts 15 keys that are sticky and times it to take 3 minutes to clean one. After Tina has cleaned one key, there are 14 left to clean. How many minutes total will it take for Tina to both clean the remaining keys and finish her assignment?
Answer: Step-by-step reasoning process: Tina has already cleaned one key so she has 14 left which take 3 minutes each to clean, 14 x 3 = 42 minutes to clean all the keyboard keys. Her assignment will take 10 minutes to complete, so she needs 42 minutes + 10 minutes = 52 minutes total before dinner.
So the answer is 52.

Question: Noel bakes 4 dozen donuts for his class. There are 30 students in class, but only 80% like donuts. How many donuts does each student who likes donuts get to eat?
Answer:
Step-by-step reasoning process: He makes 48 donuts because 4 x 12 = 48. 24 students want to eat donuts because 30 x .8 = 24. They can each eat 2 donuts because 48 / 24 = 2.
So the answer is 2.