The question in the image asks you to estimate the value of:

$\frac{22.4 \times 1.9}{8.11}$

Let's break this down step-by-step:

Step 1: Approximate the values

• $22.4 \approx 22$
• $1.9 \approx 2$
• $8.11 \approx 8$

Step 2: Perform the approximate multiplication

$22 \times 2 = 44$

Step 3: Perform the approximate division

$\frac{44}{8} = 5.5$

Final Estimated Value:

The estimated value of the expression is approximately 5.5.

Would you like further details or explanations on this? Here are some follow-up questions to expand on this concept:

1. What is the exact value if you calculate without rounding the numbers?
2. How does rounding affect the accuracy of an estimate?
3. What are other ways to estimate fractions or divisions in real-life situations?
4. Why is it important to estimate before solving the exact expression?
5. Can you estimate the value of more complex expressions using the same method?

Tip: Always adjust rounding based on context. If more precision is needed, round to fewer significant digits!