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5.NBT.7 Adding & Subtracting Decimals - Printable Mathematics Worksheets year 5 - Wayground

5.NBT.7 Adding & Subtracting Decimals

15 questions

5th - 5th Grade

Mathematics

This free printable Grade 5 mathematics worksheet develops skill with adding and subtracting decimals to the hundredths place. Students complete 12 fill-in-the-blank computations involving decimals and whole numbers, including problems that require regrouping, then solve three multiple-choice application questions about package weight, measurement differences, and money. The worksheet also asks students to estimate sums and differences, including multi-term decimal sums and everyday spending situations. These items help students connect accurate decimal computation with reasonable estimation and real-world problem solving. It is suitable for independent practice, classwork, homework, or a quick check of understanding for 5.NBT.7. A complete answer key is included with the free printable worksheet.

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Worksheets

5.NBT.7 Adding & Subtracting Decimals

Total questions: 15

Name
Class
Date
1.

45.76 + 32.8

(a)  

2.

30 - 17.86 =

(a)  

3.

1.76 + 3.25 =

(a)  

4.

4.02 + 1.8 =

(a)  

5.

9.8 - 3.46 =

(a)  

6.

7.25 - 1.8 =

(a)  

7.

20 - 11.86 =

(a)  

8.

20 - 4.03 =

(a)  

9.

Donald packs two packages inside a box. The total weight of the two packages and the box is 116.37.

The weight of one package is 47.85 pounds.

The weight of the other package is 46.31 pounds.

What is the weight of the box?

a)

68.52

b)

94.16

c)

70.06

d)

22.21

10.

Sarah is making friendship bracelets. She has purple and yellow string. She has 11.75 meters of purple string and 17.4 meters of yellow string.

How many more meters of yellow string does she have than purple string?

a)

13.49

b)

29.15

c)

5.65

d)

10.01

11.

Estimate the sum or difference.

19.7 - 6.9

(a)  

12.

Estimate the sum or difference.

59 + 43.6

(a)  

13.

Estimate the sum or difference.

5.82 + 1.69 + 2.3

(a)  

14.

Estimate the sum or difference.

87.99 - 52.46

(a)  

15.

Mary bought an orange for $0.89 and a soda for $1.95. Which is the best estimate for how much money she spent?

a)

$2.00

b)

$3.00

c)

$4.00

d)

$5.00

Answer Key

5.NBT.7 Adding & Subtracting Decimals

Total questions: 15

1.
78.56
2.
12.14
3.
5.01
4.
5.82
5.
6.34
6.
5.45
7.
8.14
8.
15.97
9.
d)

22.21

10.
c)

5.65

11.
13
12.
104
13.
10
14.
40
15.
b)

$3.00

FAQs

What does the 5.NBT.7 Adding & Subtracting Decimals worksheet cover?

This Grade 5 worksheet practices adding and subtracting decimals to the hundredths place, including operations with whole numbers and estimation of sums and differences. Its 15 items combine 12 fill-in-the-blank computations with three multiple-choice word problems about weight, measurement, and money, helping students apply decimal operations accurately and judge whether an estimate is reasonable.

How can I use this worksheet to teach adding and subtracting decimals?

Begin by modeling how to align decimal points and regroup across tenths and hundredths, then work through one computation from the fill-in-the-blank section with students. After guided practice, have students solve the remaining calculations and discuss how the package, bracelet-string, and money problems show when to add, subtract, or estimate.

What mistakes should I watch for when students complete this decimal worksheet?

Watch for students lining up digits by the right edge instead of aligning the decimal points, especially in problems such as 45.76 + 32.8 and 30 − 17.86. Students may also skip regrouping when subtracting from a whole number, choose the wrong operation in the word problems, or give an exact-looking answer instead of rounding for the estimation items.

How do I assign and grade this decimal worksheet?

The 5.NBT.7 Adding & Subtracting Decimals worksheet is available as a printable PDF and as a digital quiz on Wayground, and it includes a complete answer key for checking all 15 responses. For printable submissions, scan student work with the Wayground for Teachers app to help grade the completed decimal calculations and application questions.

How can I differentiate this adding and subtracting decimals worksheet for my students?

In the worksheet’s Advanced Settings, adjust font spacing or choose a larger font size to make the decimal computations and answer choices easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language while preserving its fill-in-the-blank and multiple-choice format.

Where can I find more worksheets like this on Wayground?

Wayground offers a broad collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.