Decimals Worksheets

Printable Decimals Worksheet

Use this student worksheet for classroom practice, tutoring, or homework. Line up the decimal points when adding and subtracting, and count decimal places when multiplying. The answer key prints separately.

Adding Decimals

#	Problem
1	3.4 + 2.5 =
2	6.7 + 1.8 =
3	12.3 + 4.9 =
4	0.75 + 0.25 =
5	5.06 + 3.4 =
6	9.99 + 0.01 =

Subtracting Decimals

#	Problem
7	8.5 − 3.2 =
8	10 − 4.7 =
9	7.25 − 2.1 =
10	15.6 − 9.85 =
11	4.3 − 1.75 =
12	20 − 0.99 =

Multiplying Decimals

#	Problem
13	0.5 × 4 =
14	2.5 × 2.5 =
15	0.3 × 0.6 =
16	0.25 × 8 =

Word Problems

#	Problem
17	A notebook costs 2.45 and a pen costs 1.30. What is the total?
18	A runner ran 3.5 km and then 2.75 km. How far in total?
19	You pay 20 for items costing 13.45. How much change?
20	An 8.4 m board is cut into 3 equal pieces. How long is each?

Decimals Worksheet Answer Key

#	Answer
1	5.9
2	8.5
3	17.2
4	1
5	8.46
6	10
7	5.3
8	5.3
9	5.15
10	5.75
11	2.55
12	19.01
13	2
14	6.25
15	0.18
16	2
17	3.75
18	6.25
19	6.55
20	2.8

A Few Worked Examples

Problem 5: line up the points — $5.06 + 3.40 = 8.46$.

Problem 15: multiply as $3 \times 6 = 18$, then place two decimal places: $0.3 \times 0.6 = 0.18$.

Problem 20: $8.4 \div 3 = 2.8$ m per piece.

Related Tools

Convert between forms with the fraction to decimal calculator, or round your answers with the rounding calculator.