Understanding Subtraction with Base Ten Blocks

The video tutorial explains how to solve the subtraction problem 700 minus 342 using two methods: base ten blocks and a number line. It begins by introducing the concept of subtraction and then demonstrates how to decompose numbers using base ten blocks to perform the subtraction. The tutorial also shows how to use a number line to find the answer by making backward jumps. The lesson concludes by confirming the answer using both methods, ensuring the correctness of the solution.

What is the main objective of this lesson?

• To memorize subtraction facts.

• To understand how to explain a subtraction number sentence in multiple ways.

• To learn how to add numbers using different methods.

• To practice multiplication using base ten blocks.

What does one cube represent in base ten blocks?

• One

• One thousand

• One hundred

• Ten

How can a 'ten long' be decomposed in base ten blocks?

• Into ten hundreds

• Into ten ones

• Into one hundred

• Into one thousand

What is the first step in subtracting 342 from 700 using base ten blocks?

• Use a number line.

• Directly subtract the numbers.

• Line up the numbers to see how many hundreds, tens, and ones are needed.

• Decompose the hundreds into tens.

After decomposing a hundred flat into tens, what is the next step?

• Add more tens.

• Decompose a ten into ones.

• Multiply the tens.

• Subtract the hundreds.

How many hundreds jumps are made on the number line when subtracting 342 from 700?

• Two

• Three

• Four

• Five

What is the purpose of making tens jumps on the number line?

• To subtract tens from the total.

• To skip counting by hundreds.

• To add numbers quickly.

• To multiply the numbers.

What is the final step in using a number line to subtract 342 from 700?

• Add two ones.

• Subtract two ones.

• Multiply by two.

• Divide by two.

What is the result of 700 minus 342?

• 360

• 700

• 342

• 358

What did you learn in this lesson?

• How to divide using a number line.

• How to multiply using base ten blocks.

• How to explain subtraction using multiple methods.

• How to add numbers using a number line.