Understanding Cost Calculation Methods

The video tutorial covers the concept of decimal multiplication using area models, specifically focusing on a problem from the 2018 released STAR test. The instructor guides students through setting up the problem, using both addition and multiplication methods to find the total cost of items. The lesson emphasizes understanding decimal multiplication and provides a step-by-step approach to solving the problem, highlighting the importance of carrying over decimals and combining different methods for a comprehensive understanding.

What is the main focus of the video tutorial?

• Fraction multiplication with area models

• Whole number multiplication with area models

• Decimal division using area models

• Decimal multiplication with area models

Which standard is being addressed in the video?

• 5.3d

• 5.3c

• 5.3b

• 5.3a

What is the cost of each pepper George is buying?

• $0.40

• $4.00

• $40.00

• $0.04

How is the cost of the peppers represented in the area model?

• Using a 15x15 grid

• Using a 10x10 grid

• Using a 5x5 grid

• Using a 20x20 grid

What does each row in the 10x10 grid represent?

• 5 cents

• 15 cents

• 20 cents

• 10 cents

What is the purpose of using a 10x10 grid in the area model?

• To represent percentages

• To represent money

• To represent whole numbers

• To represent fractions

What is the total cost of the peppers when added together?

• $1.00

• $1.40

• $0.80

• $1.20

How many times is 0.40 added to find the total cost?

• Two times

• Three times

• Four times

• Five times

What is the first step in finding the total cost using addition?

• Add 0.40 and 1.00

• Add 0.40 and 0.80

• Add 0.40, 0.40, and 0.40

• Add 0.40 and 0.40

What is the result of adding 0.40 three times?

• 1.40

• 1.20

• 1.60

• 1.00