Question: Nancy bought a pie sliced it into 8 pieces. She gave 1/2 to Joe and Darcy, and she gave 1/4 to Carl. How many slices were left?
Answer: The total number of slices she gave to Joe and Darcy is 1 / 2 x 8 = 4. The total slice she gave to Carl is 1 / 4 x 8 = 2. Therefore, the total slices left is 8 - 4 - 2 = 2. The answer is 2.

Question: Lindsey owns 4 more cars than Cathy. Susan owns 2 fewer cars than Carol. Carol owns twice as many cars as Cathy. If Cathy owns 5 cars, how many total cars do they all own put together?
Answer: Lindsey owns 4 + 5 = 9 cars. Carol owns 2 * 5 = 10 cars. Susan owns 10 - 2 = 8 cars. They all own 5 + 9 + 10 + 8 = 32 cars. The answer is 32.

Question: Jade and Krista went on a road trip for 3 days. On each day Jade had to drive 8 hours and Krista had to drive 6 hours to arrive at the destination. How many hours did they drive altogether?
Answer: Jade drives for a total of 3 days x 8 hours / day = 24 hours. Krista drives for a total of 3 days x 6 hours / day = 18 hours. Together they drive 24 hours + 18 hours = 42 hours. The answer is 42.

Question: Adam has 50 balls. 20 balls are red, 10 are blue, and the rest are either pink or orange. If there are 3 times as many pink as orange balls, how many orange balls are there?
Answer:
Adam has a total of 50 balls - 20 red - 10 blue = 20 pink and orange balls combined. If we let x be the total number of orange balls, we know that 3x is the number of pink balls. Therefore, 20 balls = x + 3x = 4x. The number of orange balls, x, is 20 balls / 4 = 5 balls. The answer is 5.