Missing Addends: Finding a Missing Part for Kids

The video tutorial introduces the part-part-whole model, explaining how it helps solve problems by identifying known and unknown parts. It uses a balloon-themed word problem to demonstrate the model, showing both addition and subtraction methods to find missing parts. A practice problem is provided for viewers to try independently, followed by a review of the concepts and encouragement to continue practicing.

What does the top part of the part-part-whole model represent?

• One of the parts

• The whole or total

• The difference

• The sum of the parts

In the balloon problem, if you have 10 balloons in total and 4 are green, how many are red?

• 6

• 4

• 10

• 2

If you know the total and one part in a part-part-whole problem, what can you do to find the missing part?

• Multiply the known part by 2

• Add the known part to the total

• Subtract the known part from the total

• Divide the total by the known part

In the practice problem, if there are 5 balloons in total and 3 are pink, how many are yellow?

• 2

• 1

• 3

• 5

What is a key strategy to solve a part-part-whole problem when you know the whole and one part?

• Guess the missing part

• Add the whole to the known part

• Multiply the known part by the whole

• Subtract the known part from the whole