Solving Exercise 3 Page 123 Math 5 Textbook

Guidance for solving exercise 3 on page 123 of Math 5 textbook

Problem:
A rectangular prism-shaped wooden block with dimensions as shown in the figure, part of the wooden block is cut into a cubic shape with a side length of 4cm. Calculate the volume of the remaining wood.

Solution Method:
- Step 1: Calculate the volume of the rectangular prism-shaped wooden block by multiplying the length by the width, then multiply by the height.
- Step 2: Calculate the volume of the cubic wooden block by multiplying the side by side, then by side.
- Step 3: Calculate the volume of the remaining wood by subtracting the volume of the rectangular prism-shaped wooden block from the volume of the cut cubic wooden block.

Answer:
The volume of the rectangular prism-shaped wooden block is:
9 x 6 x 5 = 270 (cm³)
The volume of the cut cubic wooden block is:
4 x 4 x 4 = 64 (cm³)
The volume of the remaining wood is:
270 - 64 = 206 (cm³)
Answer: 206cm³.

Mytour just provided guidance on solving exercise 3 on page 123 of Math 5 textbook. In addition, we also suggest solutions for Exercise 1 Page 123 Math 5 Textbook and Exercise 2 Page 123 Math 5 Textbook. Let's check out the guidance on solving Math 5 page 123 to study math in grade 5 well!