1. Math Unit 1 Review

2. Round the following numbers to the nearest ten:45
103 27
215
788

3. Round the following numbers to the nearest hundred:88
373
127
409
678

4. Round the number 495 to the nearest ten and hundred. What do you notice?

5. Benny the dog has 128 dog bones. His dog friend Murry has 87 dog bones
Benny the dog has 128 dog bones. His dog friend Murry has 87 dog bones. To the nearest ten, about how many dog bones do they have altogether?

6. The Murphy family went on vacation to Savannah, Georgia
The Murphy family went on vacation to Savannah, Georgia. The distance from their house to Savannah is 478 miles. To the nearest hundred, about how many miles did they drive altogether to and from Savannah?

7. Ms. Miller wants to buy a laptop
Ms. Miller wants to buy a laptop. The table below shows the prices of the different laptops she is looking at.
Laptop
Price
Model A
$536
Model B
$524
Model C
$545
Ms. Miller doesn’t want to spend more than $540. If she rounds the cost of the laptops to the nearest ten, which laptops can she afford to purchase?

8. Joseph says the following numbers are the same when rounded to the nearest hundred. Is he correct? Why or why not? 247, 257, 277, 297

9. Three hundred seventy-three people rode the train on Friday
Three hundred seventy-three people rode the train on Friday. Two hundred thirteen more people rode the train on Saturday than on Friday. How many people rode the train on both days? How would you check your answer to this problem?

10. Solve the following problems
Solve the following problems. Check your answers using the inverse operation.
854 – 278

11. The Bake Shop sold $400 worth of cookies during February, March, and April. They sold $105 worth of cookies in February and $189 worth of cookies in March. How much did they sell in April?

12. How many more years longer are the lifespans of the queen ant and mouse than the hamster?

13. How many more points did Robert and Chris score than Nathan?

14. You need to make a pictograph using the data in the chart.
How many stars should you draw to represent the number of marbles collected?
How many more stars should you draw to represent rocks than baseball cards?
How many fewer stars should you draw to represent rocks than stamps?

15. What are the lengths of the following objects to the nearest ½ and ¼ of an inch?

16. Pieces of String Measured
1. How many pieces of string are longer than 5/8 in?
2. How many more pieces of string are shorter than 4/8 inches than those who are 5/8 inches or longer?
3. How many more pieces of string are less than 2/8 inches long than 7/8 inches long?
Pieces of String Measured
Length (in inches)