Solve exercises on pages 176 and 177 of Math 5 textbook, Focus on Practice

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Solve exercises on pages 176 and 177 of Math 5 textbook, Focus on Practice

Document for solving exercises on pages 176, 177 of Math 5 textbook with detailed hints, concise methods for solving problems, and definite answers will undoubtedly be the essential and crucial resource helping students effectively solve the given textbook problems. These suggestions guide students in the best way to approach exercises and help them check whether their answers are correct or not.

Solve exercises on pages 176 and 177 of Math 5 textbook, Focus on Practice

Exercise 1 Mathematics 5 page 176 Textbook
Problem:
Calculate

Exercise 2 Mathematics 5 page 177 Textbook
Problem:
Calculate in the most convenient way

Exercise 3 Mathematics 5 page 177 Textbook
Problem:
A rectangular swimming pool has a length of 22.5m and a width of 19.2m. If the pool contains 414.72m³ of water, the water level in the pool rises to 4/5 of the pool's height. What is the height of the pool in meters?

Solution:

- Calculate the area of the rectangular pool base = length × width.

- Calculate the height of the water level in the pool = volume of water in the pool : base area of the pool.

- Calculate the height of the pool = height of the water level in the pool : 4/5.

Solution:
The base area of the swimming pool is:
22.5 x 19.2 = 432 (m²)
The height of the water level in the pool is:
414.72 : 432 = 0.96 (m).
So, the height of the swimming pool is:
0.96 : (4/5) = 1.2 (m)
=> Answer: 1.2m.

Furthermore, Multiplying a decimal by a natural number is a crucial lesson in the 5th-grade Math curriculum that students need to pay special attention to.

After the lesson on Square Meters, we continue practicing with exercises from page 28-29, offering guidance to enhance your understanding.

Exercise 4 Mathematics 5 page 177 Textbook
Problem:
A boat travels at a speed of 7.2km/h in still water, and the current speed is 1.6km/h.
a) If the boat travels downstream, how many kilometers will it cover in 3.5 hours?
b) If the boat travels upstream, how much time is needed to cover the same distance as downstream in 3.5 hours?
Solution:
a) Boat's speed downstream is:
7.2 + 1.6 = 8.8 (km/h)
Boat's speed upstream is:
7.2 - 1.6 = 5.6 (km/h)
Distance downstream in 3.5 hours is:
8.8 x 3.5 = 30.8 (km)
b) Time for the boat to cover 30.8km upstream is:
30.8 : 5.6 = 5.5 (hours) = 5 hours 30 minutes
=> Answer: a) 30.8km ; b) 5 hours 30 minutes.
Exercise 5 Mathematics 5 page 177 Textbook
Problem:
Find x
8.75 x x + 1.25 x x = 20

Solution:

Applying the formula for multiplying a sum:

(a + b) x c = a x c + b x c

Answer:

8.75 x x + 1.25 x x = 20

(8.75 + 1.25) x x = 20

10 x x = 20

x = 20 : 10

x = 2

Here is the guidance for Solving exercises on pages 176, 177 Textbook with detailed explanations. Prepare for the content of the Concentrated Practice on pages 177, 178 Math 5 Textbook through the section Solving exercises on pages 177, 178 Textbook and the Concentrated Practice on pages 178, 179 Math 5 Textbook through the section Solving exercises on pages 178, 179 Math 5 Textbook to excel in Math 5.

Detailed content for solving exercises on page 62 has been thoroughly instructed for your reference and preparation, aiming to provide the best focus for solving exercises on page 62 of Math 5 Textbook.

In addition to the learned content, you can prepare and explore the content of the Mathematics 5 page 68 problem-solving section through detailed solutions for exercises on page 68 of Math 5 Textbook, concentrating on understanding the upcoming program's concepts.

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