Solving practice exercises on page 84 for Grade 4 Math, including exercises 1, 2, 3, and 4.

Refer to Grade 4 Math solutions here: Grade 4 Math Solutions

Detailed instructions for solving Grade 4 math problems on page 84, focusing on effective practice methods.

Solving practice exercise 1 on page 84 for Grade 4 Math.

Problem:
Set up and solve:
a) 4725 : 15
b) 35136 : 18
4647 : 82
18408 : 52
4935 : 44
17826 : 48

Solution:
You can refer to the guide on setting up multi-digit division by a two-digit number in Exercise 1 on page 82 of the Grade 4 Math textbook.

Solving practice exercise 2 on page 84 for Grade 4 Math.

Problem:

If every 25 decorative bricks cover 1 square meter of floor, how many square meters of floor can be covered using all 1050 bricks of that type?

Solution:

Answer:

Summary:

25 bricks: 1m²

1050 bricks: ... m² ?

Solution:

The area of floor that can be covered using all 1050 bricks of that type is:

1050 : 25 = 42 (m²)

Answer: 42m².

Solving practice exercise 3 on page 84 of the textbook.

Problem:

To find the average number of products produced per person in all 3 months, add the number of products produced in each month and divide by 25.

Answer:

Solving practice exercise 4 on page 84 of the textbook.

Review the method of setting up division with multiple digits by two digits as instructed in Exercise 1 on page 82 of the Mathematics textbook for Grade 4.

Short and concise guidance for solving Grade 4 math problems on page 84.

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Here is the solution section for Grade 4 math problems on page 84 in the exercise section. Students can review the solution for Exercise 4 on page 83 or preview the solution for Exercise 5 on page 85 to improve their understanding of Grade 4 Mathematics.