Buzz
Exploring 4th-grade math on page 53 VBT Volume 2, Concentrated Practice, exercise 131 provides answers and detailed solutions for exercises 1, 2, 3, and 4. Through this, students can easily visualize the methods, practice exercises involving multiplication, addition, subtraction, and division of fractions.
Solving 4th-grade math on page 53 of VBT Volume 2, Concentrated Practice, exercise 131
1. Solve exercise 1 - Math workbook for 4th grade Volume 2 page 53
Problem Statement:
True - write T, False - write F in the blank spaces:
Solution Method:
Apply the following rule: To add two fractions, we need to find a common denominator for the two fractions and then add them after finding the common denominator.
Answer:
2. Solve exercise 2 - Math workbook for 4th grade Volume 2 page 53
Problem Statement:
Calculate:
Phương pháp giải
Biểu thức chỉ có phép cộng và phép trừ hoặc chỉ có phép nhân và phép chia thì ta tính lần lượt từ trái sang phải.
Answer:
3. Solve exercise 3 - Math workbook for 4th grade Volume 2 page 53
Problem Statement:
Calculate:
Solution Method:
For expressions involving addition, subtraction, multiplication, and division, perform multiplication and division first, then perform addition and subtraction.
Answer Key:
4. Solve Exercise 4 - Math Workbook for 4th Grade Volume 2 Page 53
Problem Statement:
A water tap is pouring water into a water tank. The first time it fills 2/5 of the tank. The second time it fills 1/3 of the tank. How many parts of the tank are still empty?
Solution Approach:
- Consider the water tank as one unit when it is full.
- Calculate the number of parts of the tank with water = the number of parts filled in the tank the first time + the number of parts filled in the tank the second time.
- The number of parts of the tank without water = 1 − the number of parts with water.
Answer:
The water flowing into the tank twice is:
2/5 + 1/3 = 11/15 (tank)
The remaining parts in the tank without water are:
1 - 11/15 = 4/15 (tank)
Answer: 4/15 of the tank
You are currently viewing the tutorial for solving math problems on page 53 of Exercise 2, Concentration Practice, Exercise 131. You can review the tutorial for solving math problems on pages 51, 52 of Exercise 2 Concentration Practice or preview the tutorial for solving math problems on pages 54, 55 of Exercise 2 Concentration Practice to better understand the lesson.
Wishing you success in learning mathematics.
