Multiplying Whole Numbers and Fractions

This video tutorial teaches how to multiply whole numbers by mixed numbers using the break it apart strategy. It begins with an introduction to the concept, followed by two examples: Esther's oranges and Darlene's cookies. The tutorial demonstrates how to break down multiplication problems into simpler parts and solve them step-by-step, emphasizing the use of models and repeated addition.

What does multiplying a whole number by a fraction represent?

• Subtracting the fraction from the whole number

• Creating equal groups of the fraction

• Adding the whole number to itself

• Dividing the whole number by the fraction

How many oranges does Esther have in total if she has four bags with two and a half oranges each?

• 8 oranges

• 12 oranges

• 14 oranges

• 10 oranges

What is the first step in the break-apart strategy for multiplying whole numbers by mixed numbers?

• Divide the mixed number by the whole number

• Multiply the fractions first

• Add the whole numbers together

• Break the problem into two separate multiplication problems

In the break-apart strategy, what do you do after solving the separate multiplication problems?

• Divide the results

• Add the results together

• Multiply the results

• Subtract the results

How many cups of sugar does Darlene need for four batches if each batch requires 1 and 3/4 cups?

• 5 cups

• 7 cups

• 8 cups

• 6 cups

What is the product of four times three-fourths in Darlene's example?

• Five wholes

• Two wholes

• Three wholes

• Four wholes

What is the purpose of using a bar model in these multiplication problems?

• To divide the numbers

• To subtract the numbers

• To visually represent the groups

• To add the numbers

What is the result of multiplying four times one in Darlene's example?

• Two

• Three

• Four

• Five

What is the final step in the break-apart strategy?

• Add the results of the separate problems

• Multiply the fractions

• Divide the results of the separate problems

• Subtract the fractions

What strategy is used to multiply whole numbers by mixed numbers in this lesson?

• Repeated subtraction

• Break-apart strategy

• Division strategy

• Addition strategy