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Adding Three Decimal Numbers

In this worksheet, students practise adding together three decimal numbers - ensuring that the decimal points are in line before carrying out a column addition.

'Adding Three Decimal Numbers' worksheet

Key stage:  KS 2

Curriculum topic:   Number: Fractions, Decimals and Percentages

Curriculum subtopic:   Solve Problems with Decimal Places

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

In this worksheet, we will learn how to add three numbers with decimals.

Pile of apples 

 

Example:

Find the total of:

7582.9 + 838.4 + 7390.8

 

Answer:

The most important step is to line up the decimal points, before carrying out a column addition. Remember to exchange numbers if columns add to 10 or more (shown in red).

 

Adding with decimals

Find the total of

5006.1 + 3356.1 + 5492.8 = ___________

Find the total of

1432.8 + 1909.2 + 942.3 =  ___________

Find the total of

4643.4 + 8102.7 + 2279.2 =  ___________

Find the total of

4742.9 + 3201.9 + 3536.5 =  ___________

Find the total of

3838.2 + 8930.3 + 7174.1 =  ___________

Find the total of

3675.2 + 2449.5 + 357.5 =  ___________

Find the total of

5058.7 + 766.9 + 4003.7 =  ___________

Find the total of

6790.6 + 6708.4 + 4570.9 =  ___________

Find the total of

850.7 + 4148.1 + 2705.6 =  ___________

Find the total of

1451 + 8810.5 + 3085.3 =  ___________

  • Question 1

Find the total of

5006.1 + 3356.1 + 5492.8 = ___________

CORRECT ANSWER
13855
EDDIE SAYS
Remember to line up the decimal points before adding. Don't forget to regroup if needed. 13855.0 is the same as 13855.
  • Question 2

Find the total of

1432.8 + 1909.2 + 942.3 =  ___________

CORRECT ANSWER
4284.3
EDDIE SAYS
Remember to line up the decimal points before adding. Don't forget to regroup if needed.
  • Question 3

Find the total of

4643.4 + 8102.7 + 2279.2 =  ___________

CORRECT ANSWER
15025.3
EDDIE SAYS
Remember to line up the decimal points before adding. Don't forget to regroup if needed.
  • Question 4

Find the total of

4742.9 + 3201.9 + 3536.5 =  ___________

CORRECT ANSWER
11481.3
EDDIE SAYS
Remember to line up the decimal points before adding. Don't forget to regroup if needed.
  • Question 5

Find the total of

3838.2 + 8930.3 + 7174.1 =  ___________

CORRECT ANSWER
19942.6
EDDIE SAYS
Remember to line up the decimal points before adding. Don't forget to regroup if needed.
  • Question 6

Find the total of

3675.2 + 2449.5 + 357.5 =  ___________

CORRECT ANSWER
6482.2
EDDIE SAYS
Remember to line up the decimal points before adding. Don't forget to regroup if needed.
  • Question 7

Find the total of

5058.7 + 766.9 + 4003.7 =  ___________

CORRECT ANSWER
9829.3
EDDIE SAYS
Remember to line up the decimal points before adding. Don't forget to regroup if needed.
  • Question 8

Find the total of

6790.6 + 6708.4 + 4570.9 =  ___________

CORRECT ANSWER
18069.9
EDDIE SAYS
Remember to line up the decimal points before adding. Don't forget to regroup if needed.
  • Question 9

Find the total of

850.7 + 4148.1 + 2705.6 =  ___________

CORRECT ANSWER
7704.4
EDDIE SAYS
Remember to line up the decimal points before adding. Don't forget to regroup if needed.
  • Question 10

Find the total of

1451 + 8810.5 + 3085.3 =  ___________

CORRECT ANSWER
13346.8
EDDIE SAYS
1451 is the same as 1451.0. Remember to line up the decimal points before adding. Don't forget to regroup if needed.
---- OR ----

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