Using Addition and Division to Solve Real World Problems with Rational Numbers

The video tutorial teaches how to solve real-world problems using rational numbers, focusing on addition and division. It reviews creating equivalent fractions, highlights common mistakes, and demonstrates calculating average daily changes in stock prices. The lesson concludes with solving a problem about building birdhouses using a given amount of wood, emphasizing the use of order of operations.

What is a common mistake when adding fractions with unlike denominators?

• Adding numerators and denominators directly

• Multiplying both numerators and denominators

• Converting fractions to decimals first

• Ignoring the denominators

How do you find the average of a set of numbers?

• Divide the largest by the smallest

• Subtract the smallest from the largest

• Add all numbers and divide by the count

• Multiply all numbers together

What is the final average daily change of the stock over the week?

• -1/16

• 1/16

• -2/8

• 2/8

What is the more efficient strategy to solve the birdhouse problem?

• Using order of operations

• Trial and error

• Repeated subtraction

• Guess and check

How many birdhouses can be made with 354 inches of wood?

• 4

• 3

• 6

• 5