Understanding Part-Part-Whole Mats with Subtraction

What is the main concept of using part-part-whole mats in subtraction?

• Part minus whole equals part

• Part plus part equals whole

• Whole minus part equals part

• Whole plus part equals part

In the first example, how many cubes are initially used as the whole?

• Six

• Five

• Seven

• Eight

After moving four cubes into one part in the first example, how many cubes are left in the whole?

• Two

• Three

• Four

• Five

In the second example, what is the initial number of cubes in the whole?

• Four

• Three

• Five

• Six

How many cubes are moved into one part in the second example?

• Four

• Two

• One

• Three

What is the result of 5 minus 4 in the second example?

• Three

• One

• Two

• Four

In the third example, how many cubes are used as the whole?

• Five

• Eight

• Six

• Seven

How many cubes are moved into one part in the third example?

• Four

• Three

• Two

• One

What is the result of 7 minus 1 in the third example?

• Five

• Six

• Seven

• Eight

What math tool was used in the video to demonstrate the part-part-whole mats?

• Blocks

• Cubes

• Rulers

• Dice