# Add and Subtract Decimals: Finding Missing Numbers

In this worksheet, students practise their decimal addition facts by using subtraction to find the missing number.

Key stage:  KS 2

Curriculum topic:   Number: Fractions, Decimals and Percentages

Curriculum subtopic:   Solve Problems with Decimal Places

Difficulty level:

### QUESTION 1 of 10

Work out the missing number in the decimal addition problem:

____ +  3.87 = 5.99

To work this out, we must subtract 5.99 - 3.87 = 2.12

Use the inverse to help find the missing number.

Find the missing number.

5.54 + ________ = 7.23

Find the missing number.

____ + 3.87 = 7.68

Find the missing number.

____ + 2.4 = 5.92

Find the missing number.

____ + 3.29 = 8.09

Find the missing number.

____ + 5.72 = 7.76

Find the missing number.

____ + 1.58 = 3.12

Find the missing number.

____ + 5.19 = 6.24

Find the missing number.

____ + 3.62 = 7.71

Find the missing number.

3.54 + _____ =  8.36

Find the missing number.

2.18 + _____ =  4.5

• Question 1

Find the missing number.

5.54 + ________ = 7.23

1.69
EDDIE SAYS
7.23 - 5.54 = 1.69
• Question 2

Find the missing number.

____ + 3.87 = 7.68

3.81
EDDIE SAYS
7.68 - 3.87 = 3.81
• Question 3

Find the missing number.

____ + 2.4 = 5.92

3.52
EDDIE SAYS
5.92 - 2.4 = 3.52
• Question 4

Find the missing number.

____ + 3.29 = 8.09

4.8
EDDIE SAYS
8.09 - 3.29 = 4.8
• Question 5

Find the missing number.

____ + 5.72 = 7.76

2.04
EDDIE SAYS
7.76 - 5.72 = 2.04
• Question 6

Find the missing number.

____ + 1.58 = 3.12

1.54
EDDIE SAYS
3.12 - 1.58 = 1.54
• Question 7

Find the missing number.

____ + 5.19 = 6.24

1.05
EDDIE SAYS
6.24 - 5.19 = 1.05
• Question 8

Find the missing number.

____ + 3.62 = 7.71

4.09
EDDIE SAYS
7.71 - 3.62 = 4.09
• Question 9

Find the missing number.

3.54 + _____ =  8.36

4.82
EDDIE SAYS
8.36 - 3.54 = 4.82
• Question 10

Find the missing number.

2.18 + _____ =  4.5

2.32
EDDIE SAYS
4.50 - 2.18 = 2.32
---- OR ----

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