Average Problems( Week 9 Evaluation) 1. What is the natural number comes exactly in the middle between 1 and 7? 2. There will be a canoe race. The blue team has 7 canoes. The yellow team has 9 canoes. The green team has 5 canoes. What is the average number of the canoes in a team? 3. A sheep pen holds 9 sheep and another sheep pen holds 1 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. Nancy is 17 years old, and Tom is 25 years old. How old will Tom be when Nancy is 33 years old? 5. What is the number with the same distance from 0 and 726? 6. Sofia has 56 marbles, and Niconia has 34 marbles. How many marbles does Sofia need to give Niconia so that each of them has the same number of the marbles? 7. There were 5 boys with the heights of 46 inches, 48 inches, 50 inches, 52 inches, and 54 inches respectively. What is their average height in inches? 8. A book shelf has four layers. There are 51 books on the first layer. There are a total of 66 books on the second and third layer. There are 47 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 24-hour period? 10. Find the sum of 1 + 2 + 3 + 4 + ... + 78 + 79 =? |