Exploring Subtraction in a Mathematical Galaxy

How does the number line method help in solving 455 - 123?

• By adding the numbers together

• By breaking down the subtraction into smaller steps

• By multiplying the numbers

• By using a calculator

What is the key idea behind the commutative planet's method of subtraction?

• Changing the order of numbers

• Using multiplication instead of subtraction

• Adding extra numbers to the equation

• Simplifying numbers to make subtraction easier

In the commutative planet's method, what is the new equation formed after adjusting the numbers?

• 432 - 100

• 432 - 123

• 455 - 100

• 455 - 123

How are base ten blocks used to solve subtraction problems?

• By adding more blocks

• By representing numbers and removing blocks for subtraction

• By multiplying the blocks

• By dividing the blocks into smaller pieces

What is the final difference obtained using base ten blocks for 455 - 123?

• 100

• 455

• 123

• 332