Subtraction Using Base-Ten Blocks with Regrouping

The video tutorial guides students through solving a subtraction problem using base 10 blocks. Jasmine needs to subtract 48 from 94. The process involves representing numbers with units and rods, borrowing from the tens place, and regrouping to complete the subtraction. The final result is 46. The lesson emphasizes understanding subtraction through visual aids and regrouping techniques.

What is the first step in representing the number 94 using base 10 blocks?

• Use 9 rods and 4 units

• Use 4 rods and 9 units

• Use 8 rods and 6 units

• Use 6 rods and 8 units

Why do we need to borrow a rod during the subtraction process?

• Because we have fewer rods than needed

• Because we have more units than needed

• Because we have more rods than needed

• Because we have fewer units than needed

How many units do we have after borrowing a rod?

• 12 units

• 14 units

• 16 units

• 10 units

What is the final result of subtracting 48 from 94?

• 44

• 46

• 48

• 50

What concept did you learn in this lesson?

• Addition using base 10 blocks

• Multiplication using base 10 blocks

• Subtraction using base 10 blocks with regrouping

• Division using base 10 blocks