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Choosing Digits: Making a Sum Correct

In this worksheet, students choose the missing digits needed to make the given statements correct.

'Choosing Digits: Making a Sum Correct' worksheet

Key stage:  KS 2

Curriculum topic:  Number: Addition and Subtraction

Curriculum subtopic:  Solve Add/Subtract Problems to 1000

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

This worksheet is about finding missing digits.

Missing digits are shown with a .

 

Example

Choose the two digits between 0 and 9 which make this subtraction correct.

 

8♦  -  ♦4  = 23

 

Answer

Look at

8  -  4  = 23

 

To get an answer of 23, we can tell that:

The missing units digit must be 4 + 3 = 7

 

So now we have

87  -  4  = 23

 

The missing tens digit must be 8 - 2 = 6

 

This gives the statement 87  -  64  = 23

Choose the digit between 0 and 9 which is needed to make this subtraction correct:

 

4♦  -   5  = 40

0

1

2

3

4

5

6

7

8

9

Choose the two digits between 0 and 9 which are needed to make this statement correct.

 

4♦  +  ♦0  = 67

0

1

2

3

4

5

6

7

8

9

Choose the two digits between 0 and 9 which are needed to make this addition correct.

 

5♦  +  ♦7  = 95

0

1

2

3

4

5

6

7

8

9

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

7♦  -  ♦1  = 64

0

1

2

3

4

5

6

7

8

9

Choose the two digits between 0 and 9 which are needed to make this subtraction correct

 

♦5  -  4♦  = 40

0

1

2

3

4

5

6

7

8

9

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

♦8  -  5♦  = 45

0

1

2

3

4

5

6

7

8

9

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

2♦  -  ♦4  = 11

0

1

2

3

4

5

6

7

8

9

Choose one digit between 0 and 9 which is needed to make this subtraction correct.

 

♦7  -  7  = 10

0

1

2

3

4

5

6

7

8

9

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

♦4  -  4♦  = 7

0

1

2

3

4

5

6

7

8

9

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

6♦  -  ♦3  = 17

0

1

2

3

4

5

6

7

8

9

  • Question 1

Choose the digit between 0 and 9 which is needed to make this subtraction correct:

 

4♦  -   5  = 40

CORRECT ANSWER
5
EDDIE SAYS
45 - 5 = 40
  • Question 2

Choose the two digits between 0 and 9 which are needed to make this statement correct.

 

4♦  +  ♦0  = 67

CORRECT ANSWER
2
7
EDDIE SAYS
47 + 20 = 67
  • Question 3

Choose the two digits between 0 and 9 which are needed to make this addition correct.

 

5♦  +  ♦7  = 95

CORRECT ANSWER
3
8
EDDIE SAYS
Here we must carry, so 58 + 37 = 95
  • Question 4

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

7♦  -  ♦1  = 64

CORRECT ANSWER
1
5
EDDIE SAYS
75 - 11 = 64
  • Question 5

Choose the two digits between 0 and 9 which are needed to make this subtraction correct

 

♦5  -  4♦  = 40

CORRECT ANSWER
5
8
EDDIE SAYS
85 - 45 = 40
  • Question 6

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

♦8  -  5♦  = 45

CORRECT ANSWER
3
9
EDDIE SAYS
98 - 53 = 45
  • Question 7

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

2♦  -  ♦4  = 11

CORRECT ANSWER
1
5
EDDIE SAYS
25 - 14 = 11
  • Question 8

Choose one digit between 0 and 9 which is needed to make this subtraction correct.

 

♦7  -  7  = 10

CORRECT ANSWER
1
EDDIE SAYS
17 - 7 = 10
  • Question 9

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

♦4  -  4♦  = 7

CORRECT ANSWER
5
7
EDDIE SAYS
54 - 47 = 7
  • Question 10

Choose the two digits between 0 and 9 which are needed to make this subtraction correct.

 

6♦  -  ♦3  = 17

CORRECT ANSWER
0
4
EDDIE SAYS
60 - 43 = 17
---- OR ----

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