Problems of the week - August 24 to August 29

Rewards for Problems of the week:

5 points for the correct answer at your level; 10 points for the next level; 20 points each for 2+ levels up. 

Lower Elementary:
Question: A gold coin is worth the same amount as 17 silver coins or 493 copper coins. Put the following in order from least valuable to most valuable: a book that costs 7 silver coins, a magical wand that costs 7 gold coins, and a chocolate frog that costs 7 copper coins.
 

Upper Elementary:
Question: A train leaves London for a small town in Scotland at 11:00 AM. The train takes a 540-mile route and reaches its destination at 5:00 PM. What was the train’s average speed during its journey to Scotland?
 

Middle School:
Question: A feather is floating 76.2 centimeters off the ground. How many feet off the ground is the feather?
 

Algebra and Up:
Question: Four teams have just finished a year-long competition. The Serpents scored 32 points more than 1.25 times the number of points scored by the Badgers. The Badgers scored 3 less than ⁵/₆ the number of points scored by the Eagles. The Serpents, Eagles, and Badgers scored a total of 1,250 points between the three of them. The Lions won the competition by 10 points. How many points did the Lions score?
 

Challenge problem to take home. 20 points for the correct answer. 

2 + 2 + 2 + 2 + 2 = 10

Using $$+, -, \times,$+,-,\times ,$ or $$\div,$÷,$ how many ways can you change the equation above to equal 18? 

$$
18? 18