This video tutorial teaches how to add numbers within 1000 using base 10 blocks. It begins with an introduction to base 10 blocks and place value, followed by examples of adding numbers like 473 and 125, 204 and 652, and 34 and 865. The tutorial emphasizes the importance of combining place values correctly to find the sum.

What is the primary method used in this lesson to add numbers?

• Using base 10 blocks

• Using a calculator

• Using an abacus

• Using mental math

How can the number 543 be represented using base 10 blocks?

• 5 hundreds, 4 tens, 3 ones

• 5 tens, 4 hundreds, 3 ones

• 5 hundreds, 3 tens, 4 ones

• 5 ones, 4 tens, 3 hundreds

When adding 473 and 125, what is the sum of the ones place?

• 6

• 7

• 8

• 9

What is a common mistake when adding numbers using base 10 blocks?

• Combining place values incorrectly

• Starting with the hundreds place

• Using too many blocks

• Ignoring the tens place

In the example of adding 204 and 652, what is the sum of the tens place?

• 40

• 50

• 70

• 60

What is the total sum when adding 204 and 652 using base 10 blocks?

• 756

• 856

• 956

• 1056

How many hundreds are there in the number 865?

• 6

• 7

• 9

• 8

What is the sum of the ones place when adding 34 and 865?

• 9

• 10

• 7

• 8

What is the final sum of 34 and 865 using base 10 blocks?

• 919

• 909

• 929

• 899

What is the key takeaway from this lesson on adding within 1000?

• Always start with the hundreds place

• Use base 10 blocks to visualize addition

• Ignore the ones place

• Use mental math for faster results