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Solving Grade 3 Math on Pages 53, 54 - Kite Series Workbook Volume 2
Problem Solution: Resolving exercises on pages 53 and 54 of Mathematics Grade 3 Workbook Volume 2, Kite series.
Addition within the Range of 100,000
1. Solve Exercise 1 Page 53 Mathematics Grade 3 Textbook
Problem: Calculate.
Solution: Add the numbers sequentially from right to left.
Answer:
2. Solve Exercise 2 Page 53 Mathematics Grade 3 Textbook
Problem: Set up and calculate:
Solution:
+ Arrange the addition vertically so that the digits in the same place align with each other.
+ Add the numbers sequentially from right to left.
Answer:
3. Solve Exercise 3 Page 53 Mathematics Grade 3 Textbook
Problem: Mentally calculate (according to the model).
Solution: Observe the example, then mentally calculate the addition of numbers in the thousands and tens of thousands places.
Answer:
- 5,000 + 3,000 = 8,000
- 4,000 + 70,000 = 74,000
- 7,000 + 9,000 = 16,000
- 62,000 + 38,000 = 100,000
- See also: Solve exercises on pages 55 and 56 of Mathematics Grade 3 Workbook Volume 2, from the Kite series
4. Solve Exercise 4 Page 54 Mathematics Grade 3 Textbook
Problem: In your opinion, who calculated correctly?
Guidance:
Step 1: Check how each of you sets up and solves the problem.
Step 2: Conclude if you did it correctly.
Answer:
Khanh calculated correctly.
An calculated incorrectly because:
5. Solve Exercise 5 Page 54 Mathematics Grade 3 Textbook
Problem: Responding to the 'Small Plan - Collecting Scrap Paper' movement, Le Van Tam Elementary School collected 2,672 kg of scrap paper, and Kim Dong Elementary School collected 2,718 kg of scrap paper. How much scrap paper did both schools collect in kilograms?
Solution: The total kilograms of scrap paper collected by both schools = The kilograms of scrap paper collected by Le Van Tam School + The kilograms of scrap paper collected by Kim Dong School.
Answer:
Both schools collected a total of kilograms of scrap paper:
2,672 + 2,718 = 5,390 (kg)
Final answer: 5,390 kg of scrap paper.
6. Solve Exercise 6 Page 54 Mathematics Grade 3 Textbook
Problem: Observe the diagram, help Lan find the shortest route from home to school and from home to the museum.
Solution: Step 1: Explore different routes from home to school and from home to the museum.
Step 2: Compare the routes and determine the shortest path to each destination.
Answer:
- The distance from home to school has 2 routes:
+ The path from Lan's home to school (passing the gas station) is 6 + 8 = 14 km = 14,000 m
+ The path from Lan's home to school (passing the supermarket) is 1,750 + 2,340 = 4,090 m.
- The distance from home to the museum has 2 routes:
+ The path from Lan's home to the museum (via the swimming pool) is 3,183 + 6,450 = 9,633 m
+ The path from Lan's home to the museum (via the gas station) is 6 + 1 = 7 km = 7,000 m.
All exercises from the lesson Addition within the range of 100,000 are solved in the document for solving exercises on pages 53 and 54 of Mathematics Grade 3 Workbook Volume 2, from the Kite series. We hope it will be helpful for third-grade students.
