Let's solve each of the multiplication problems given in the image:

1. 7.2 × 2.1 $7.2 \times 2.1 = 15.12$

2. 4.3 × 8.5 $4.3 \times 8.5 = 36.55$

3. 2.64 × 1.4 $2.64 \times 1.4 = 3.696$

4. 14.23 × 8.21 $14.23 \times 8.21 = 116.8663$

5. 5.01 × 11.6 $5.01 \times 11.6 = 58.116$

6. 9.001 × 4.2 $9.001 \times 4.2 = 37.2042$

7. 3.24 × 0.008 $3.24 \times 0.008 = 0.02592$

8. 0.012 × 2.9 $0.012 \times 2.9 = 0.0348$

9. 0.9 × 11.2 $0.9 \times 11.2 = 10.08$

Would you like more details on any of these calculations? Feel free to ask!

Related Questions:

1. What is the significance of decimal placement in multiplication?
2. How can you multiply numbers without a calculator?
3. What are some common mistakes to avoid when multiplying decimals?
4. Can multiplication of decimals be applied to real-world problems?
5. How do you determine the number of decimal places in a multiplication result?

Tip:

When multiplying decimals, count the total number of decimal places in both factors to determine the decimal placement in the final result.