Bài toán giải bằng bốn bước tính.

What is the area of the stage in the multi-purpose hall?

• 60 m²

• 450 m²

• 510 m²

• 90 m²

What is the total combined area of the stage and practice areas?

• 60 m²

• 450 m²

• 510 m²

• 90 m²

What is the remaining area for the warehouse and aisles?

• 60 m²

• 450 m²

• 510 m²

• 90 m²

What is the first step to find the area of a rectangular football field given its perimeter and the difference between its length and width?

• Calculate the area of the football field.

• Calculate the width of the football field.

• Calculate half of the perimeter of the football field.

• Calculate the length of the football field.

What type of problem-solving method is used to find the length and width of the football field?

• Finding two numbers when their product and sum are known.

• Finding two numbers when their sum and difference are known.

• Finding two numbers when their product and difference are known.

• Finding two numbers when their ratio and sum are known.

What is the first step to calculate the area of the football field?

• Calculate the length of the field.

• Calculate the width of the field.

• Calculate the half-perimeter of the field.

• Calculate the area directly.

Are you enjoying the video lesson?

• Yes

• No

What is the area of the football field?

• 7140 m²

• 105 m²

• 68 m²

• 346 m²

What is the price of one type 2 notebook?

• 13000 dong

• 12000 dong

• 15000 dong

• 10000 dong

How much money did Hien spend on notebooks?

• 104000 dong

• 122000 dong

• 65000 dong

• 57000 dong