Which expression correctly shows the decimal 3.09 in expanded form?

$3 + \frac{0}{10} + \frac{9}{1000}$

Warming Up to Decimals Practice — Grade 6 math

1. Write the decimal 7.81 in expanded form as a sum of a whole number and fractions. ___
2. Which expression correctly shows the decimal 3.09 in expanded form?
- A. $3 + \frac{9}{10}$
- B. $3 + \frac{9}{100}$
- C. $3 + \frac{0}{10} + \frac{9}{1000}$
- D. $30 + \frac{9}{100}$
3. The decimal 0.4 is equivalent to what fraction? ___
4. What decimal number is represented by the expanded form $8 + \frac{2}{10} + \frac{5}{1000}$? ___
5. In the number 12.345, what is the value of the digit 4?
- A. 4
- B. $\frac{4}{10}$
- C. $\frac{4}{100}$
- D. $\frac{4}{1000}$
6. Express the decimal 2.168 in its expanded form using fractions. ___
7. Which mixed number is equivalent to the decimal 9.25?
- A. $9\frac{2}{5}$
- B. $9\frac{25}{10}$
- C. $9\frac{25}{100}$
- D. $9\frac{25}{1000}$
8. A chemist mixes 12.55 mL of solution A with 8.9 mL of solution B. What is the total volume of the mixture in milliliters? ___ mL
9. Maria bought a book for 14.50 dollars and a bookmark for 2.75 dollars. If she paid with a 20 dollar bill, how much change did she receive?
- A. 2.75 dollars
- B. 3.75 dollars
- C. 17.25 dollars
- D. 5.50 dollars
10. A rectangular park has a length of 0.85 kilometers and a width of 0.5 kilometers. What is the total distance in kilometers if you walk one full lap around the park's edge? ___ km