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The document for solving 4th-grade math problem on page 97 of VBT workbook volume 2, Further practice with fraction operations, problem 162 is very helpful for mastering Math. Through this, students can easily understand how to solve exercises 1, 2, 3, 4 as well as efficiently tackle fraction operation problems.
Solve the 4th-grade math problem on page 97 of VBT workbook volume 2, Continuing with fraction operations, problem 162
1. Solve problem 1 - Math exercise book for 4th grade volume 2 page 97
Given problem:
Calculate using two methods:
Solution Method
Apply the formulas:
Formula: (a + b) x c = a x c + b x c
Formula: (a - b) x c = a x c - b x c
Formula: (a + b ) : c = a : c + b : c
Formula: (a - b ) : c = a : c - b : c
Answer:
2. Solve problem 2 - Math workbook for 4th grade page 97
Problem:
Calculate:
Solution Method:
Divide the product in the numerator and the product in the denominator by their common factors.
Answer:
3. Solve problem 3 - Math workbook for 4th grade page 97
Choose A
4. Solve problem 4 - Math workbook for 4th grade page 97
Problem Statement:
The suitable number to write in the blank of 4/5 : .../5 = 1/5 is
Option B: 4
Option C: 5
Option D: 20
Solution Method
Let the unknown number be x. The fraction x/5 is at the position of the divisor. We find the fraction x/5 by dividing the dividend by the quotient. From there, we will find x.
Answer
Assume the number to be filled in the blank is x.
We have: 4/5 : x/5 = 1/5
x/5 = 4/5 : 1/5
x/5 = 4
x = 4 x 5
x = 20
Select option D
4. Solve problem 4 - Workbook math grade 4 volume 2 page 97
Problem:
A piece of fabric is 25m long. 4/5 of the fabric has been used to make clothes. The remaining fabric is used to make bags, each bag using 5/8 m of fabric. How many bags can be made in total?
Solution Method:
- To find the amount of fabric used for clothes, multiply 25m by 4/5.
- To find the remaining fabric, subtract the amount used for clothes from the initial length of fabric.
- To find the number of bags made, divide the remaining fabric by the amount of fabric needed to make one bag.
Answer:
People used up fabric for clothes:
25 x 4/5 = 20 (m)
The remaining amount of fabric is:
25 − 20 = 5 (m)
The number of bags made is:
5 : 5/8 = 8 (bags)
Answer: 8 bags
You are currently watching the guidance for solving math problems on page 97 of Workbook 2, reviewing operations with fractions (continued), question 162. You can review the instructions for solving math problems on pages 95 and 96 of Workbook 2, reviewing operations with fractions (continued), or preview the instructions for solving math problems on pages 98 and 99 of Workbook 2, reviewing operations with fractions (continued), to gain a better understanding of the lesson.
