Understanding Number Representation

How many hundred squares are used in the first method to represent the number 702?

• Eight

• Five

• Seven

• Six

In the first method, what is the total value of the unit cubes used?

• 100

• 2

• 10

• 200

How many tens rods are used in the second method to complete the representation of 702?

• Five

• Ten

• Fifteen

• Twenty

What is the total value of the tens rods used in the second method?

• 150

• 100

• 200

• 50

Why is it important to understand how to compose and decompose numbers?

• To avoid using models

• To memorize numbers

• To perform subtraction effectively

• To increase speed in addition