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Reviewing problem-solving techniques is the main focus in the section of solving exercises from page 176 of Math 3 textbook. Today, we guide students through solving 4 exercises in the book to practice concise and accurate problem-solving methods.
Solving Exercise 1 on page 176 of Math 3 Textbook
Problem:
Calculating the population of a town this year
Answer:
The population of the town increased by:
87 + 75 = 162 (people)
So, the population of the town this year is:
5236 + 162 = 5398 (people)
Answer: 5398 people
Solving Exercise 2 on page 176 of Math 3 Textbook
Problem:
Solution:
The number of shirts sold is:
1245 : 3 = 415 (shirts)
Remaining shirts:
1245 - 415 = 830 (shirts)
Answer: 830 shirts.
Solving Exercise 3 on page 176 of Math 3 Textbook
Đề bài:
Trả lời:
The number of trees planted is:
20500 : 5 = 4100 (trees)
The remaining number of trees to plant according to the plan is:
20500 - 4100 = 16400 (trees)
Answer: 16400 trees
Solving Exercise 4 on page 176 of Math 3 Textbook
Fill in D or S
a) 96 : 4 x 2 = 24 x 2 = 48
b) 96 : 4 x 2 = 96 : 8 = 12
b) 96 : 4 x 2 = 96 : 8 = 12
c) 96 ÷ (4 × 2 ) = 96 ÷ 8 = 12
Trả lời:
a) Correct
b) Incorrect
c) Correct
