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Solution document for Grade 4 Math Workbook, page 147, introduces ratios, including answers and guidance for solving exercises 1 to 4 on page 147 of the workbook. It helps students grasp the concept of ratios and apply quick solutions to exercises in the workbook. With the solution document for Grade 4 Math Workbook, page 147, students will find learning and solving math exercises in class much quicker and easier.
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Grade 4 Math Problem Solving, Page 147: Introduction to Ratios (Including Solution Methods)
1. Solving Grade 4 Math Problem, Page 147, Exercise 1
Problem Statement:
Find the ratio of a and b, given:
Solution Method:
The ratio of a and b is a:b or a/b (where b is not equal to 0).
Answer:
2. Solving Grade 4 math problem on page 147 introducing ratios, problem 2
Problem Statement:
In the box, there are 2 red pens and 8 blue pens.
a) Write the ratio of the number of red pens to the number of blue pens
b) Write the ratio of the number of blue pens to the number of red pens
Solution Method:
The ratio of a and b is a:b or a/b (where b is not equal to 0).
Answer:
a) The ratio of red pens to blue pens is 2/8
b) The ratio of blue pens to red pens is 8/2
3. Solving Grade 4 math problem introducing ratios on page 147, problem 3
Problem Statement:
In a class, there are 5 boys and 6 girls
a) Write the ratio of the number of boys to the total number of students
b) Write the ratio of the number of girls to the number of boys in the class
Solution Method:
The ratio of a and b is a:b or a/b (where b is not equal to 0).
Answer:
The total number of students in the class is: 5 + 6 = 11 (students)
a) The ratio of the number of boys to the total number of students is: 5/11
b) The ratio of the number of girls to the total number of students is: 6/11
4. Solving Grade 4 math problem introducing ratios on page 147
Problem Statement:
On a field, there are 20 cows and the number of buffaloes equals 1/4 the number of cows. How many buffaloes are there on the field?
Solution Method:
To find the number of buffaloes, we find 1/4 of 20 cows. To find 1/4 of 20 cows, we multiply 20 by 1/4 and write the result in the answer
Answer:
There are 20 buffaloes grazing on the field: 20 : 4 = 5 (buffaloes)
Answer: 5 buffaloes
Class 4 math problem page 147 summarized
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Here is the solution to the 4th-grade math problem on page 147 introducing ratios in the math exercise section for 4th graders. Students can review the Solving 4th-grade math problems on pages 144, 145 for concentrated practice that has been previously solved or preview the Solving 4th-grade math problems on page 148 of the textbook for better understanding the subject of 4th-grade math. Always study hard to achieve high results in math as well as other subjects.
