[Question]: Greg is riding his bike around town and notices that each block he rides, his wheels rotate 200 times. He's now on a a trail and wants to make sure he rides at least 8 blocks. His wheels have already rotated 600 times, how many more times do they need to rotate to reach his goal?
[Answer]: They need to rotate 1,600 times because 8 x 200 = 1,600. They need to rotate 1,000 more times because 1,600 - 600 = 1,000.
So the answer is 1000.

[Question]: In Fifi's closet, she hangs all of her clothes on colored plastic hangers. She has clothes hanging on 7 pink hangers, 4 green hangers, one less blue hanger than there are green hangers, and one less yellow hanger than there are blue hangers. What is the total number of colored hangers in Fifi's closet?
[Answer]: With 4 green hangers, 1 less blue hanger than there are green hangers is 4 - 1 = 3 blue hangers. With 3 blue hangers, 1 less yellow hanger less than there are blue hangers is 3 - 1 = 2 yellow hangers. With 7 pink hangers, the total number of colored hangers in Fifi's closet is 7 + 4 + 3 + 2 = 16 hangers.
So the answer is 16.

[Question]: The green piece of yarn is 156 cm long. The red yarn is 8 cm more than three times the length of the green yarn. What is the number of centimeters in the total length for the 2 pieces of yarn?
[Answer]:
Green = 156 cm. Red = 3 * 156 + 8 = 476 cm. 156 + 476 = 632 cm of yarn. The two pieces of yarn have a length of 632 centimeters.
So the answer is 632.