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Solving Math 3 exercises on pages 79 and 80 in 'Cánh Diều' Volume 2
Solving exercises on pages 79 and 80 of Math 3 Volume 2 textbook, 'Cánh Diều':
Discover the unknown components of the mathematical operation (continuation)
1. Solve Exercise 1 on Page 79 of Math Grade 3 Textbook
Problem: Find the unknown components in the following mathematical operations:
Solution Guide: To find a factor, divide the product by the other factor.
Answer:
2. Solve Exercise 2 on Page 79 of Math Grade 3 Textbook
Problem: Number ?
Solution Guide:
Product = Factor x Factor.
To find a factor, divide the product by the other factor.
Answer:
3. Solve Exercise 3 on Page 80 of Math Grade 3 Textbook
Problem: Find the unknown components in the following mathematical operations:
Solution Guide:
+ In a complete division, to find the dividend, multiply the quotient by the divisor.
+ In a complete division, to find the divisor, divide the dividend by the quotient.
Answer:
- See more: Solve exercises on pages 81, 82 of Math 3 Volume 2 textbook, 'Cánh Diều'
4. Solve Exercise 4 on Page 80 of Math Grade 3 Textbook
Problem: Uncle Năm wants to take some trees to plant in 8 plots, each plot has 12 trees. Calculate the number of trees Uncle Năm needs to take.
Solution Guide: The number of trees Uncle Năm needs to take = the number of trees in each plot x the number of plots.
Answer:
The number of trees Uncle Năm needs to take is:
12 x 8 = 96 (trees)
Answer: 96 trees.
For solving exercises on pages 79, 80 of Math 3 Volume 2 textbook, 'Cánh Diều,' it is hoped that students can easily solve exercises from the lesson 'Finding the unknown components of the mathematical operation (continued),' reinforcing their knowledge.
