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In this worksheet, students must work out the missing numbers in the addition grids.

Key stage:  KS 1

Curriculum topic:   Number: Number and Place Value

Curriculum subtopic:   Represent Numbers to 100

Difficulty level:

### QUESTION 1 of 10

In this worksheet, you have to find the missing numbers in addition grids.

Look at this grid.

 + 1 2 3 4 5 1 2 6 3 4 6 5

It shows that 2 + 4 = 6 and 4 + 2 = 6

Now look at this grid.

 + 1 2 3 4 5 1 2 3 6 3 4 6 5 9

It now also shows that 2 + 1 = 3 and 5 + 4 = 9

Example

Complete the grid below to find the value of A.

 + 1 2 3 4 5 1 2 A 4 5 6 2 A 4 5 6 7 3 4 5 6 7 8 4 5 6 7 8 9 5 6 7 8 9 10

2 + 1 = 3 and 1 + 2 = 3

A is 3

 + 1 2 3 4 5 1 2 3 4 5 6 2 3 4 5 6 7 3 4 5 6 7 8 4 5 6 7 8 9 5 6 7 8 9 10

Complete the grid below to find the value of A.

 + 1 2 3 4 5 1 2 3 4 5 6 2 3 4 5 6 A 3 4 5 6 A 8 4 5 6 A 8 9 5 6 A 8 9 10

Complete the grid below to find the value of B.

 + 1 2 3 4 5 1 2 3 4 5 B 2 3 4 5 B 7 3 4 5 B 7 8 4 5 B 7 8 9 5 B 7 8 9 10

Complete the grid below to find the value of C.

 + 1 2 3 4 5 1 2 3 4 C 6 2 3 4 C 6 7 3 4 C 6 7 8 4 C 6 7 8 9 5 6 7 8 9 10

Complete the grid below to find the value of D.

 + 1 2 3 4 5 1 2 3 4 5 6 2 3 4 5 6 7 3 4 5 6 7 D 4 5 6 7 D 9 5 6 7 D 9 10

Complete the grid below to find the value of E.

 + 1 2 3 4 5 1 2 3 E 5 6 2 3 E 5 6 7 3 E 5 6 7 8 4 5 6 7 8 9 5 6 7 8 9 10

Complete the grid below to find the value of A.

 + 1 2 3 4 5 1 2 3 4 5 6 5 6 A 8 9 10 3 4 5 6 7 8 4 5 6 7 8 9 2 3 4 5 6 7

Complete the grid below to find the value of A.

 + 2 1 3 4 5 1 3 2 4 5 6 5 7 A 8 9 10 3 5 4 6 7 8 4 6 5 7 8 9 2 4 3 5 6 7

Complete the grid below to find the value of A.

 + 2 1 3 4 5 1 3 2 4 5 6 5 7 6 A 9 10 3 5 4 6 7 A 4 6 5 7 A 9 2 4 3 5 6 7

Complete the grid below to find the value of B.

 + 2 4 3 1 5 5 B 9 8 6 10 1 3 5 4 2 6 3 5 B 6 4 8 4 6 8 B 5 9 2 4 6 5 3 B

Which letter stands for the number 10?

 + 1 2 3 4 5 5 7 9 8 6 A 1 3 5 4 2 6 3 5 B 6 4 C 4 6 D 7 5 9 2 4 6 5 3 E
A

B

C

D

E

• Question 1

Complete the grid below to find the value of A.

 + 1 2 3 4 5 1 2 3 4 5 6 2 3 4 5 6 A 3 4 5 6 A 8 4 5 6 A 8 9 5 6 A 8 9 10
7
EDDIE SAYS
2 + 5 = 7
3 + 4 = 7
4 + 3 = 7
5 + 2 = 7
• Question 2

Complete the grid below to find the value of B.

 + 1 2 3 4 5 1 2 3 4 5 B 2 3 4 5 B 7 3 4 5 B 7 8 4 5 B 7 8 9 5 B 7 8 9 10
6
EDDIE SAYS
1 + 5 = 6
2 + 4 = 6
3 + 3 = 6
4 + 2 = 6
5 + 1 = 6
• Question 3

Complete the grid below to find the value of C.

 + 1 2 3 4 5 1 2 3 4 C 6 2 3 4 C 6 7 3 4 C 6 7 8 4 C 6 7 8 9 5 6 7 8 9 10
5
EDDIE SAYS
1 + 4 = 5
2 + 3 = 5
3 + 2 = 5
4 + 1 = 5
• Question 4

Complete the grid below to find the value of D.

 + 1 2 3 4 5 1 2 3 4 5 6 2 3 4 5 6 7 3 4 5 6 7 D 4 5 6 7 D 9 5 6 7 D 9 10
8
EDDIE SAYS
3 + 5 = 8
4 + 4 = 8
5 + 3 = 8
• Question 5

Complete the grid below to find the value of E.

 + 1 2 3 4 5 1 2 3 E 5 6 2 3 E 5 6 7 3 E 5 6 7 8 4 5 6 7 8 9 5 6 7 8 9 10
4
EDDIE SAYS
1 + 3 = 4
2 + 2 = 4
3 + 1 = 4
• Question 6

Complete the grid below to find the value of A.

 + 1 2 3 4 5 1 2 3 4 5 6 5 6 A 8 9 10 3 4 5 6 7 8 4 5 6 7 8 9 2 3 4 5 6 7
7
EDDIE SAYS
5 + 2 = 7
• Question 7

Complete the grid below to find the value of A.

 + 2 1 3 4 5 1 3 2 4 5 6 5 7 A 8 9 10 3 5 4 6 7 8 4 6 5 7 8 9 2 4 3 5 6 7
6
EDDIE SAYS
5 + 1 = 6
• Question 8

Complete the grid below to find the value of A.

 + 2 1 3 4 5 1 3 2 4 5 6 5 7 6 A 9 10 3 5 4 6 7 A 4 6 5 7 A 9 2 4 3 5 6 7
8
EDDIE SAYS
5 + 3 = 8
3 + 5 = 8
4 + 4 = 8
• Question 9

Complete the grid below to find the value of B.

 + 2 4 3 1 5 5 B 9 8 6 10 1 3 5 4 2 6 3 5 B 6 4 8 4 6 8 B 5 9 2 4 6 5 3 B
7
EDDIE SAYS
5 + 2 = 7
3 + 4 = 7
4 + 3 = 7
2 + 5 = 7
• Question 10

Which letter stands for the number 10?

 + 1 2 3 4 5 5 7 9 8 6 A 1 3 5 4 2 6 3 5 B 6 4 C 4 6 D 7 5 9 2 4 6 5 3 E
A
EDDIE SAYS
5 + 5 = 10
---- OR ----

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