Adding and Subtracting Mixed Numbers Using Visual Models

In this video tutorial, Sara and Lilly are making cupcakes and using different amounts of sugar. The lesson demonstrates how to add and subtract mixed numbers with equal denominators using visual models. Sara uses 2 and 2/3 cups of sugar, while Lilly uses 1 and 2/3 cups. The video shows how to combine these amounts to find a total of 4 and 1/3 cups of sugar used. It also explains how to calculate the remaining sugar in the pot by subtracting the used amount from the initial 8 and 2/3 cups, resulting in 4 and 1/3 cups left. The tutorial emphasizes understanding fractions and mixed numbers through visual aids.

How much sugar does Sara use for her cupcakes?

• 3 cups

• 2 cups

• 2 and 2/3 cups

• 1 and 2/3 cups

What is the first step in finding the total sugar used by Sara and Lilly?

• Divide the sugar amounts

• Multiply the sugar amounts

• Subtract the sugar amounts

• Add the sugar amounts

How many full cups of sugar do Sara and Lilly have together before dealing with fractions?

• 4 full cups

• 3 full cups

• 2 full cups

• 5 full cups

After combining the sugar, what is the total amount of sugar used by Sara and Lilly?

• 5 cups

• 4 and 1/3 cups

• 4 cups

• 3 and 1/3 cups

How much sugar was initially in the pot before Sara and Lilly used some?

• 7 and 2/3 cups

• 8 and 2/3 cups

• 9 cups

• 8 and 1/3 cups

What is the remaining amount of sugar in the pot after Sara and Lilly used some?

• 3 and 1/3 cups

• 4 and 1/3 cups

• 4 cups

• 5 cups

What mathematical concept is primarily taught in this lesson?

• Adding and subtracting mixed numbers

• Dividing whole numbers

• Multiplying fractions

• Calculating percentages