Adding 3-Digit Numbers with Base Ten Blocks

The video tutorial teaches how to add two three-digit numbers, 175 and 138, using base 10 blocks. It explains the process of representing numbers with blocks, adding ones to compose a new ten, and adding tens to compose a new hundred. The tutorial concludes with the final addition, resulting in the sum of 313.

What are the two numbers used in the addition example?

• 165 and 125

• 175 and 138

• 195 and 135

• 185 and 148

What does '10 ones make a new tens block' imply?

• None of the above

• Removing a tens block

• Composing a new ten

• Adding a hundred block

How many ones are left after composing a new ten?

• Three

• Two

• Four

• One

What results from having ten tens during the addition?

• No change

• A new hundred

• A new thousand

• Ten new tens

How many hundreds are there after composing a new one?

• Two

• One

• Three

• Four

What is the final result of adding 175 and 138?

• 308

• 313

• 303

• 318