The smart way to improve grades

Comprehensive & curriculum aligned

Affordable pricing from £10/month

Addition and Subtraction: Find the Missing Numbers (1)

In this worksheet, students understand the relationship between addition and subtraction to help them find missing numbers.

'Addition and Subtraction: Find the Missing Numbers (1)' worksheet

Key stage:  KS 1

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Understand Relationship Between Addition and Subtraction

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

In this worksheet, you must find the missing number in an addition by subtracting the given number from the total.

 

Example

What must I add to 24 to make 29?

 

24   +   ?   =   29

 

Answer

29 − 24 = 5

 

What number must I add to 15 to make 26?

 

 ? + 15 =

26

 

What number must I add to 16 to make 21?

 

16 + ? = 21

 

What number must I add to 1 to make 19?

 

? + 1 = 19

 

What number must I add to 6 to make 9?

 

6 + ? = 9

 

What number must I add to 7 to make 19?

 

? + 7 = 19

 

What number must I add to 4 to make 11?

 

4 + ? = 11

 

What number must I add to 9 to make 26?

 

? + 9 = 26

 

What number must I add to 15 to make 16?

 

15 + ? = 16

 

What number must I add to 2 to make 6?

 

? + 2 = 6

 

What number must I add to 4 to make 16?

 

4 + ? = 16

 

  • Question 1

What number must I add to 15 to make 26?

 

 ? + 15 =

26

 

CORRECT ANSWER
11
EDDIE SAYS

26 - 15 = 11

  • Question 2

What number must I add to 16 to make 21?

 

16 + ? = 21

 

CORRECT ANSWER
5
EDDIE SAYS

21 - 16 = 5

  • Question 3

What number must I add to 1 to make 19?

 

? + 1 = 19

 

CORRECT ANSWER
18
EDDIE SAYS

19 - 1 = 18

  • Question 4

What number must I add to 6 to make 9?

 

6 + ? = 9

 

CORRECT ANSWER
3
EDDIE SAYS

9 - 6 = 3

  • Question 5

What number must I add to 7 to make 19?

 

? + 7 = 19

 

CORRECT ANSWER
12
EDDIE SAYS

19 - 7 = 12

  • Question 6

What number must I add to 4 to make 11?

 

4 + ? = 11

 

CORRECT ANSWER
7
EDDIE SAYS

11 - 4 = 7

  • Question 7

What number must I add to 9 to make 26?

 

? + 9 = 26

 

CORRECT ANSWER
17
EDDIE SAYS

26 - 9 = 17

  • Question 8

What number must I add to 15 to make 16?

 

15 + ? = 16

 

CORRECT ANSWER
1
EDDIE SAYS

16 - 15 = 1

  • Question 9

What number must I add to 2 to make 6?

 

? + 2 = 6

 

CORRECT ANSWER
4
EDDIE SAYS

6 - 2 = 4

  • Question 10

What number must I add to 4 to make 16?

 

4 + ? = 16

 

CORRECT ANSWER
12
EDDIE SAYS

16 - 4 = 12

---- OR ----

Sign up for a £1 trial so you can track and measure your child's progress on this activity.

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started
laptop

Start your £1 trial today.
Subscribe from £10/month.