Question: Martin spends 2 hours waiting in traffic, then four times that long trying to get off the freeway. How much time does he waste total?
Answer with step-by-step thinking: First find the total amount of time he spends trying to get off the freeway: 2 hours * 4 = 8 hours. Then add the time he spends waiting in traffic to find the total time: 8 hours + 2 hours = 10 hours.
So the answer is 10.


Question: On Mary's birthday, her brother surprised her with $100. She spent a quarter of it on a new video game and then used a fifth of what was left on swimming goggles. How much money did she have left?
Answer with step-by-step thinking: Mary spent 100 / 4 = 25 dollars on a new video game. So, after the video game purchase, Mary was left with 100 - 25 = 75 dollars. Mary then bought swimming goggles for 75 / 5 = 15 dollars. Mary had 75 - 15 = 60 dollars left.
So the answer is 60.


Question: Peter goes to the store to buy a soda. The soda costs $.25 an ounce. He brought $2 with him and leaves with $.50. How many ounces of soda did he buy?
Answer with step-by-step thinking:
He spend $1.5 on soda because 2 - .5 = 1.5. He bought 6 ounces of soda because 1.5 / .25 = 6.
So the answer is 6.