Subtracting 10 Across Hundreds with Base Ten Blocks

This video tutorial teaches how to subtract 10 from three-digit numbers using base ten blocks. It explains the composition of numbers into hundreds, tens, and ones, and demonstrates the process of decomposition when there are no tens in the tens place. Through examples, the video shows how to break down hundreds into tens to facilitate subtraction, ensuring students understand the concept of decomposition and its application in subtraction.

What is the composition of the number 253 in terms of hundreds, tens, and ones?

• 2 hundreds, 5 tens, 3 ones

• 5 hundreds, 2 tens, 3 ones

• 3 hundreds, 2 tens, 5 ones

• 2 hundreds, 3 tens, 5 ones

What does it mean to decompose a hundred flat in the context of base ten blocks?

• To add more hundreds

• To convert it into ones

• To break it into 10 tens

• To combine it with tens

In the example of 203 minus 10, what is the result after decomposition?

• 203

• 193

• 213

• 183

When subtracting 10 from 409, what is the final result after decomposition?

• 419

• 399

• 389

• 409

What is the key concept learned in this lesson about subtracting 10 across hundreds?

• Decomposing hundreds into tens

• Adding tens to hundreds

• Subtracting hundreds directly

• Multiplying tens by hundreds