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Guidance on solving 5th-grade math on page 75
Solving Percentage Ratio Problems
1. Solve Exercise 1 on page 75 of 5th-grade Math Textbook
Problem Statement:
Convert the following decimal numbers into percentage ratios (according to the example):
0.57; 0.3; 0.234; 1.35.
Example: 0.57 = 57%.
Solution Method:
Convert decimal numbers into percentage ratios by: Multiplying the given decimal number by 100, then adding the % symbol after the result.
Answer:
0.3 = 30%; 0.234 = 23.4%; 1.35 = 135%
2. Solve Exercise 2 on page 75 of 5th-grade Math Textbook
Problem Statement:
Calculate the percentage ratio of two numbers (according to the example):
a) 19 and 30; b) 45 and 61; c) 1.2 and 26;
Example: a) 19 : 30 = 0.6333...= 63.33%
Solution Method:
To find the percentage ratio of two numbers, divide the first number by the second, multiply the result by 100 (rounded to the second decimal place), and add the % symbol after the result.
Answer:
b) 45 : 61 = 0.7377... = 73.77%
c) 1.2 : 26 = 0.0461... = 4.61%
3. Solve Exercise 3 on page 75 of 5th-grade Math Textbook
Problem Statement:
A class has 25 students, including 13 female students. Calculate the percentage of female students in the class.
Solution Method:
To find the percentage ratio of female students to the total number of students in the class, divide the number of female students by the total number of students, multiply the result by 100, and add the % symbol after the result.
Answer:
The percentage ratio of female students to the total number of students in the class is:
13 : 25 = 0.52 = 52%
Answer: 52%.
Short guide to solving 5th-grade math on page 75
Here is the solution to 5th-grade math on page 75 in the section solving 5th-grade math exercises. Students can review the previously solved 5th-grade math on page 74 or preview the solution to exercises on page 77 of the 5th-grade math textbook to improve their understanding of the subject.
