Mental Math: Adding 10 or 100 using Base 10 Blocks

The video tutorial teaches how to mentally add 10 or 100 to a number using base 10 blocks. It begins with an introduction to the concept, followed by an explanation of place value in three-digit numbers. The tutorial then demonstrates adding 10 and 100 to numbers using visual aids, emphasizing changes in the tens and hundreds places. The lesson concludes with a summary of the mental addition techniques covered.

What is the value of the digit in the hundreds place in the number 253?

• 5

• 0

• 2

• 3

When adding 10 to 279 using base 10 blocks, which place value changes?

• Tens

• Thousands

• Hundreds

• Ones

What is the result of adding 10 to 279?

• 289

• 279

• 299

• 269

In the example of adding 100 to 432, which place value increases?

• Tens

• Ones

• Thousands

• Hundreds

What is the sum of 432 and 100?

• 442

• 432

• 522

• 532