Prime and Composite
Identify the following number as prime or composite:
45
Composite
What place value is the 6 in?
15.601
Tenths
3 x 2/6
1
What is 2.938 rounded to the nearest hundredth?
2.94
1.12 x 1.5
1.68
Identify the following number as prime or composite:
23
Prime
What place value is the 7 in?
21,420.178
Hundredths
2/5 x 15
6
What is 0.64 rounded to the tenths place?
0.6
There were 681 books sold at a used book sale. Each book was sold for $0.50. What was the total amount of money collected from the sale of these books?
12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25
4
What place value is the 5 in?
15.231
ones
Easton works 5 days a week. He spends 1/3 of each day at work. How many number of days does Easton work each week?
1 2/5
Mr. DeWitt has 9.375 liters of paint. What is this number rounded to the nearest hundredth?
9.38
Roberto spends $29.77 on 13 gallons of gas for his car. How much does each gallon of gas cost?
$2.29
What is the only even number that is prime?
2
After finding the difference of 21 - 17.03 what number is in the tenths place?
9
Weather delayed 4/6 of the 24 flights departing from an airport. All the departing flights are listed in the chart. How many flights from the airport were delayed by weather?
16
A number rounded to the nearest hundredth is 384.93. The original number is greater than 384.93. What could be the number?
Answers will vary
Maggie feeds her dog a total of 97.5oz of dog food over a period of 30 days. She feeds her dog the same amount of food every day. How many oz does Maggie feed her dog each day?
Which of these are composite numbers?
31, 52, 81, 67, 29, 97
52 and 81
After finding the product of 5.83 x 7.6, what number is in the hundredths place?
0
Mrs. Gilcrease threw 50 pencils on the ground. She had the students pick up 1/5 of them. How many pencils did the students pick up?
10
Megan rounds a decimal to the nearest tenth, then records the rounded number as shown
124.6
What number could Megan have rounded to the nearest tenth?
answers will vary
The 3 computer monitors in a classroom use a total of 0.87 watt of electricity. Each monitor uses the same number of watts. How many watts does each monitor use?
0.29 watts