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Solve Math Grade 3 exercises on pages 76 and 77 of Cánh Diều workbook volume 2
Solve exercises on pages 76 and 77 of Math 3 Workbook Volume 2, Cánh Diều:
Finding the Unknown Component of the Arithmetic Operation
1. Solve Exercise 1 on Page 76 of Math Grade 3 Textbook
Problem Statement: Determine the unknown component in the following arithmetic problems:
Solution Guide: To find one term, subtract it from the sum.
Answer:
2. Solve Exercise 2 on Page 76 of Math Grade 3 Textbook
Problem Statement: Number ?
Solution Guide:
Sum = term + term.
To find one term, subtract the other term from the sum.
Answer:
3. Solve Exercise 3 on Page 77 of Math Grade 3 Textbook
Problem Statement: Determine the unknown component in the following arithmetic problems:
Solution Guide:
+ To find the subtracted number, add it to the difference.
+ To find the subtractor, subtract the difference from the subtracted number.
Answer:
4. Solve Exercise 4 on Page 77 of Math Grade 3 Textbook
Problem Statement: Number ?
Solution Guide:
+ Difference = minuend - subtrahend.
+ To find the minuend, add the difference to the subtrahend.
+ To find the subtrahend, subtract the difference from the minuend.
Answer:
- See more: Solve exercises on pages 79 and 80 of Math 3 Workbook Volume 2, Cánh Diều publication
5. Solve Exercise 5 on Page 77 of Math Grade 3 Textbook
Problem Statement: a) Initially, there are 10 eggs in the nest, some eggs have hatched, and 6 eggs remain unhatched. How many eggs have hatched?
b) Mr. Nam bought tickets to a fair for 12,000 VND, and the ticket seller returned 8,000 VND to him. How much money did Mr. Nam give to the ticket seller?
Solution Guide:
a) Number of hatched eggs = initial number of eggs in the nest - number of unhatched eggs.
b) The amount Mr. Nam gave to the ticket seller = amount returned by the ticket seller + amount spent on tickets.
Answer:
a) The number of hatched eggs is:
10 - 6 = 4 (eggs)
Answer: 4 eggs.
b) Mr. Nam gave the ticket seller an amount of:
8,000 + 12,000 = 20,000 (dong)
Answer: 20,000 dong.
The detailed solution in Math 3 Workbook Volume 2, Cánh Diều, has provided a comprehensive guide to solving exercises of the lesson Finding the unknown component of the arithmetic operation. If students have any doubts, they can leave a comment, and Mytour will respond promptly.
