Tom's Marble Sales and Fractions

The video tutorial explains how Tom had an equal number of blue and red marbles, gave away some red marbles, and sold some blue marbles. The instructor models the problem using fractions, explaining how to use equivalent fractions to determine the total number of marbles Tom initially had. By understanding the relationship between the parts and the whole, the instructor calculates the total number of marbles, providing a clear solution to the problem.

What did Tom do with his red marbles?

• He kept all of them.

• He gave away all of them.

• He sold all of them.

• He gave away five-ninths of them.

How many blue marbles did Tom sell?

• 39

• 59

• 49

• 29

How are the red marbles divided in the model?

• Into 5 parts

• Into 9 parts

• Into 7 parts

• Into 3 parts

What is the purpose of using equivalent fractions in this problem?

• To divide the marbles

• To add the marbles

• To multiply the marbles

• To solve the question

What fraction of the marbles was Tom left with?

• One-fourth

• One-third

• One-fifth

• One-half

How many total parts are considered in the equivalent fraction?

• 12

• 21

• 15

• 18

What does the six out of 18 represent in the problem?

• The total marbles

• The given away marbles

• The sold marbles

• The remaining marbles

How many units are equal to 49 marbles?

• 7 units

• 8 units

• 5 units

• 6 units

What is the first step in finding the total number of marbles Tom had?

• Find the number of blue marbles

• Find one unit

• Find the number of red marbles

• Find the number of given away marbles

What is the value of one unit in terms of marbles?

• 5 marbles

• 6 marbles

• 8 marbles

• 7 marbles