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Solving 5th Grade Math Problems on Pages 16 and 17 of VBT Workbook 2, Introduction to Pie Chart, Exercise 100, detailed instructions for solving exercises 1 and 2 closely following the lesson content. Students can refer to gain a clear understanding of the pie chart, applying it to solve exercises correctly and more easily.
Solving 5th Grade Math Problems on Pages 16 and 17 of VBT Workbook 2, Introduction to Pie Chart, Exercise 100
1. Solving Exercise 1 - Math Exercise Book for 5th Grade Workbook 2 Page 16
Exercise:
The pie chart on the side shows the percentage ratio of the means of transportation used by 40 boarding students to get to school.
Based on the chart, write the appropriate number in the blank space:
a. The number of students walking is: .......................
b. The number of students riding bicycles is: ........................
c. The number of students being transported by their parents on motorcycles is: ......................
d. The number of students traveling by car is: ..........................
Solution Method
- From the chart, we observe that 50% of students walk to school, 25% ride bicycles, 20% are transported by their parents on motorcycles, and 5% are driven to school by car. Therefore, we can determine the number of students using each mode of transportation to get to school.
- Rule for finding a% of a number B: To find a% of B, we can divide B by 100 then multiply by a or multiply B by a then divide by 100.
Answer
a. The number of students walking is:
40 x 50 : 100 = 20 (students)
b. The number of students riding bicycles is :
40 x 25 : 100 = 10 (students)
c. The number of students being transported by their parents on motorcycles is :
40 x 20 : 100 = 8 (students)
d. The number of students traveling by car is :
40 x 5 : 100 = 2 (students)
2. Solving Exercise 2 - Math Exercise Book for 5th Grade Workbook 2 Page 16
Problem:
Write the appropriate number in the blank space:
There are 40 students who are football fans. The percentage ratio of fans for each football team is shown in the pie chart below:
Based on the chart, we can calculate:
a. The number of Brown Squirrel team fans is ..................... students.
b. The number of White Rabbit team fans is ..................... students.
c. The number of Golden Deer team fans is ..................... times the number of Black Bear team fans.
Solution Method
- From the chart, we observe that 25% of students are fans of the Golden Deer team, 12.5% are fans of the Black Bear team, 15% are fans of the White Rabbit team, and 47.5% are fans of the Brown Squirrel team. Therefore, we can find the number of students who are fans of each team.
- Rule for finding a% of a number B: To find a% of B, we can divide B by 100 then multiply by a or multiply B by a then divide by 100.
Answer
a. The number of Brown Squirrel team fans is:
40 x 47.5 : 100 = 19 (students)
b. The number of White Rabbit team fans:
40 x 15 : 100 = 6 (students)
c. The number of Golden Deer team fans:
40 x 25 : 100 = 10 (students)
The number of Black Bear team fans is:
40 x 12.5 : 100 = 5 (students)
The number of Golden Deer team fans is twice the number of Black Bear team fans.
You are currently viewing the guide for solving math problems in 5th grade workbook 2, Introducing the pie chart exercise 100 on pages 16 and 17. You can review the guide for solving math problems on pages 15 and 16 of workbook 2 for focused practice or preview the guide for solving math problems on pages 17 and 18 of workbook 2 for practice on area calculation to better understand the lesson.
Wishing you all the best in your math studies.
