Modeling Decimal Multiplication

Name:

Date:

🎯 I Can Statement & Success Criteria

I can: Use base ten blocks to model decimal multiplication and solve problems using the traditional algorithm.

Success Criteria:

I can represent decimals using base ten blocks

I can model decimal × whole number multiplication

I can use the traditional algorithm correctly

I can place the decimal point in the correct position

1. Model 2.3 × 4 using base ten blocks. Draw your model below:

Answer: 2.3 × 4 = _______

2. Use base ten blocks to solve 1.25 × 3. Show your work:

Answer: 1.25 × 3 = _______

3. Which base ten blocks would you use to represent 4.7?

4 flats, 7 longs

4 longs, 7 units

4 units, 7 tenths

4 tenths, 7 hundredths

4. Model and solve 0.8 × 6:

Answer: _______

5. Solve using the traditional algorithm: 12.4 × 7

6. Find the product: 45.8 × 3

7. When multiplying 6.25 × 4, how many decimal places should be in your answer?

1 decimal place

2 decimal places

3 decimal places

4 decimal places

8. Extension Challenge: A package weighs 2.75 pounds. What is the total weight of 8 packages?

Show your work using both base ten blocks (draw) AND the traditional algorithm.

9. Explain how modeling with base ten blocks helps you understand decimal multiplication: