1. The table shows the estimated populations of three states in 2012. Which of the following is the best estimate of the difference between the populations of California and Texas?
12 million
2. What is the difference of r and 7.124 when the value of r is 30.9?
23.776
3. What is the difference between 21.4 and 8.56?
12.84
4. The average speed of Earth as it orbits the sun is 18.5 miles per second. On average, how many miles does Earth travel in 60 seconds?
1,110 miles
5. A charity sold 5,958 tickets for a music concert. The price of each ticket was $9.91. Which is the best estimate of the total amount of money raised from the ticket sales?
$60,000
6. There was already one inch of snow on the ground when the storm started. In the storm, 2.5 inches of snow fell every hour. How much snow was on the ground at the end of 4 hours of the storm?
11.0 in.
7. Which shows the value of g in the following equation? g - 5.4 = 16.63
g= 22.03
8. Juli wants to buy 2.5 yards of fabric for a project. The fabric costs $5.88 per yard. About how much will the fabric for Juli’s project cost? Explain.
About 15 because 3 x 5 = 15
9. The rod is a unit of length still used to measure some canoeing portages. One rod is equal to 16.5 feet. A canoe portage is 3.25 rods long. How many feet long is it?
53.625 ft
10. Mr. Jackson bought 42 bolts. Each bolt cost $0.48. How much did he spend for the bolts?
$20.16
11. Evaluate the expression. 5.38 + x; x = 2.94
8.32
12. Evaluate the expression. 9.372 - y; y = 5.4
3.972
13. What is the value of m if m + 3.39 = 5.2?
m = 1.81
14. Solve the equation and check your answer. 32.68 + t = 45.742
t= 13.062
15. What is the value of n if n + 2.066 = 6?
n= 3.934
16. Each pound of red potatoes costs $0.74. How much will 6.5 pounds of red potatoes cost?
$4.81
