Adding with Base 10 Blocks

This video tutorial explains the concept of base 10 blocks, also known as longs, cubes, and flats, to demonstrate addition. The example used is 17 + 25. The process involves combining all tens and ones, trading 10 ones for a ten block, and then counting the total number of tens and ones to arrive at the final sum of 42.

What are base 10 blocks also known as?

• Lines, dots, and shapes

• Squares, circles, and triangles

• Longs, cubes, and flats

• Blocks, bricks, and stones

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

• To confuse students

• To avoid using a calculator

• To visually represent numbers

• To make calculations faster

What is the first step in adding numbers using base 10 blocks?

• Trade ones for tens

• Count the ones

• Combine all the tens and ones

• Add the tens blocks

What do you do after combining all the tens and ones?

• Subtract the ones

• Add the tens

• Count up the ones

• Multiply the tens

When do you trade ones cubes for a tens block?

• When there are less than 10 ones

• When there are no ones left

• When there are more than 10 ones

• When there are exactly 10 ones

What happens if there are exactly 10 ones cubes?

• Trade them for a tens block

• Leave them as they are

• Add them to the total

• Remove them

How many tens blocks are there in the example given?

• Five

• Two

• Four

• Three

What is the total value of the tens blocks in the example?

• 50

• 20

• 40

• 30

What is the next step after trading ones for a tens block?

• Subtract the tens blocks

• Count all of the tens blocks

• Add the ones cubes

• Multiply the ones cubes

What is the value of each tens block?

• 15

• 20

• 5

• 10