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Solving Exercise 1 on page 168 of Math textbook 3
Problem:
Calculate:
a) (13829 + 20718) x 2
b) 14523 - 24964 : 4
c) (20354 - 9638) x 4
d) 97012 - 21506 x 4
Answer:
a) (13829 + 20718) x 2 = 34547 x 2 = 69094
b) 14523 - 24964 : 4 = 10716 x 4 = 42864
c) (20354 - 9638) x 4 = 14523 - 6241 = 8282
d) 97012 - 21506 x 4 = 97012 - 86024 = 10988
Solving Exercise 2 on page 168 of Math 3 Textbook
Question:
Answer: 35 weeks.
Answer:
The number of weeks Hường studies math in a year is :
175 : 5 = 35 (weeks)
The answer is: 35 weeks.
Problem 3 solution on page 168 of Math 3 textbook
Question:
The head of a production team received 75000 dong as a bonus and distributed it equally among 3 people in the team. How much bonus does each of the 2 people receive?
The answer is:
Each person receives:
7500 divided by 3 equals 2500 (dong)
Two people receive:
Multiplying 2500 by 2 gives us 50000 (dong)
The answer is: 50000 dong.
Solution for Exercise 4 on page 168 of Math 3 Textbook
Problem:
A square has a perimeter of 2dm 4cm. How many square decimeters is the area of that square?
Answer:
Next, you can explore the section Reviewing numbers up to 100,000 through the content Solving exercises on page 169 of Math 3 textbook and the Reviewing numbers up to 100,000 (continued) with the part Solving exercises on page 170 of Math 3 textbook to improve your Math skills in Grade 3.
