Understanding Addition with Base 10 Blocks

This video tutorial teaches how to add numbers within 1000 using base 10 blocks. It explains the concept of base 10 representation and demonstrates the process of regrouping. Through examples, viewers learn to add numbers by combining ones, tens, and hundreds, and understand common mistakes in regrouping. The tutorial concludes with a summary of the key concepts.

What is the purpose of using base 10 blocks in addition?

• To make subtraction easier

• To confuse students

• To simplify the process of addition by visualizing numbers

• To make numbers look bigger

How can the number 268 be represented using base 10 blocks?

• 8 hundreds, 2 tens, 6 ones

• 2 hundreds, 6 tens, 8 ones

• 2 hundreds, 8 tens, 6 ones

• 6 hundreds, 2 tens, 8 ones

When adding 527 and 246, what is the first step?

• Combine the hundreds

• Combine the tens

• Combine the ones

• Combine all at once

What is a common mistake when regrouping in addition?

• Not using enough base 10 blocks

• Forgetting to remove extra ones or tens after regrouping

• Adding numbers in the wrong order

• Forgetting to add the hundreds

What happens if you don't remove the extra ones after regrouping?

• The answer becomes larger

• The answer remains the same

• The answer becomes incorrect

• The answer becomes smaller

In the example of adding 492 and 385, what is the result of combining the ones?

• 5 ones

• 12 ones

• 7 ones

• 9 ones

How many tens are there after regrouping in the addition of 492 and 385?

• 5 tens

• 12 tens

• 9 tens

• 7 tens

What is the sum of 492 and 385 using base 10 blocks?

• 777

• 877

• 1077

• 977

In the addition of 169 and 755, how many ones are there after regrouping?

• 14 ones

• 6 ones

• 5 ones

• 4 ones

What is the final sum of 169 and 755 using base 10 blocks?

• 924

• 824

• 1124

• 1024