Practice: Decimal Place Value

Part A: Identify Place Value

Directions: Identify the place and value of the underlined digit.

1. 6.427

Place:

Value:

2. 15.381

Place:

Value:

3. 9.056

Place:

Value:

4. 24.159

Place:

Value:

Part B: Write in Word Form

Directions: Write each decimal in word form.

5. 3.72

6. 14.008

7. 0.625

Part C: Write in Standard Form

Directions: Write each decimal in standard form (numbers).

8. Twelve and forty-five hundredths

Standard form:

9. Seven hundred three thousandths

Standard form:

10. Twenty and nine tenths

Standard form:

Part D: Expanded Form

Directions: Write each decimal in expanded form.

11. 5.86

+ +

12. 12.407

+ + +

13. Write in standard form: (7 x 10) + (3 x 1) + (5 x 0.1) + (2 x 0.01) + (9 x 0.001)

Standard form:

Part E: How Digit Value Changes

Directions: Answer questions about how a digit's value changes when it moves.

14. In 0.5, the digit 5 is in the tenths place. Its value is 0.5.

If the 5 moves to the hundredths place (0.05), its value is now

The new value is times (smaller/greater) than before.

15. In 0.03, the digit 3 is in the hundredths place. Its value is 0.03.

If the 3 moves to the tenths place (0.3), its value is now

The new value is times (smaller/greater) than before.

16. Compare the value of 4 in each number:

Number	Place of 4	Value of 4
4.123
0.412
0.004

Challenge: Think About It!

17. Marcus says that 0.40 is greater than 0.400 because 40 is less than 400. Is Marcus correct? Explain your reasoning.

18. The digit 7 has a value of 0.007. In what place is the digit 7? Write a decimal number where 7 has this value.

Place:

Example number: