Decimal Concepts

Decimal Place Value

100

What is the value of the digit 7 in the number 4.75?

7/10 or seven tenths

200

In the number 3.206, what is the place value of the digit 2?

2 tenths or 2/10

300

How many decimal places are in the number 0.045?

three

400

Write the number 5.82 in words.

five and eighty two hundredths

500

What is the value of the digit 9 in the number 12.936?

9 tenths or 9/10

Representing Decimals

100

Write 4.3 in expanded form.

4 + 0.03

200

What is the expanded form of 6.05?

6 + 0.05

300

Express 2.407 in expanded form using fractions.

2 + 4/10 + 7/1000

400

Write the number 3.009 in expanded form.

3 + 9/1000 or (3*1) + (3*1/1000)

500

What does 1,234.56 look like in expanded form?

1,000 + 200 + 30 + 4 + 5/10 + 6/100

Rounding & Comparing Decimals

100

Round 2.68 to the nearest whole number.

3

200

Which is larger: 3.45 or 3.54?

3.54

300

Round 5.376 to the nearest hundredth.

5.38

400

Order these decimals from least to greatest: 1.2, 1.22, 1.202.

1.2, 1.202, 1.22

500

Round 7.891 to the nearest tenth.

7.9

Adding Decimals

100

What is 2.3 + 1.5?

3.8

200

Calculate 4.75 + 0.25.

5.00

300

What is the sum of 3.6 and 5.45?

9.05

400

Add 0.9 + 1.89 + 0.11.

2.9

500

Find the total of 12.6 + 7.35 + 0.05.

20

Subtracting Decimals

100

What is 5.5 - 2.2?

3.3

200

Calculate 10.0 - 3.75.

6.25

300

What is the difference between 4.8 and 2.5?

2.3

400

Subtract 8.9 - 7.1.

1.8

500

What is the difference of 15.75 - 4.5?

11.25