📊 Part 1: Estimation and Reasoning

1. Estimate the product by rounding each decimal to the nearest whole number:

3.4 × 2.5

3.4 rounds to _____ and 2.5 rounds to _____

My estimate: _____ × _____ = _____

2. How many decimal places will be in the product of 4.6 × 3.2?

1 decimal place

2 decimal places

3 decimal places

4 decimal places

3. Which product would be closest to 8?

2.1 × 3.8

1.5 × 5.2

4.2 × 1.9

6.1 × 1.3

🔢 Part 2: Solve and Show Work

4. Solve: 3.4 × 2.5

First, estimate: ________________

Final answer: ________________

5. Solve: 4.6 × 3.2

First, estimate: ________________

Final answer: ________________

6. Solve: 1.7 × 2.5

First, estimate: ________________

Final answer: ________________

7. Maya solved 2.3 × 1.4 and got 322. Explain what mistake she likely made and what the correct answer should be.

8. Real-world problem: A rectangular garden is 3.5 feet long and 2.4 feet wide. What is the area of the garden?

Estimate: ________________

Answer: ________________ square feet

9. Explain in your own words why we count decimal places when multiplying decimals.