Average Problems( Week 9 Evaluation) 1. What is the natural number comes exactly in the middle between 10 and 14? 2. There will be a canoe race. The blue team has 4 canoes. The yellow team has 8 canoes. The green team has 6 canoes. What is the average number of the canoes in a team? 3. A sheep pen holds 9 sheep and another sheep pen holds 7 sheep. To make each sheep pen hold the same number of sheep, how many sheep need to be moved from one sheep pen to the other sheep pen? 4. Helen is 17 years old, and John is 21 years old. How old will John be when Helen is 37 years old? 5. What is the number with the same distance from 0 and 1230? 6. Anne has 78 marbles, and Nancy has 54 marbles. How many marbles does Anne need to give Nancy so that each of them has the same number of the marbles? 7. There were 7 boys with the heights of 37 inches, 40 inches, 43 inches, 46 inches, 49 inches, 52 inches, and 55 inches respectively. What is their average height in inches? 8. A book shelf has four layers. There are 44 books on the first layer. There are a total of 79 books on the second and third layer. There are 49 books in the fourth layer. How many books are there in average on a layer of the shelf? 9. A 12-hour clock chimes once at 1:00, twice at 2:00, three times at 3:00, etc. In addition, the clock chimes once at half-past each hour. How many times does the clock chime altogether in one 12-hour period? 10. Find the sum of 1 + 2 + 3 + 4 + ... + 94 + 95 =? |