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Identify Sequence Types and Find Missing End Numbers

In this worksheet, students will identify missing numbers in sequences of odd and even numbers, as well as times table sequences.

'Identify Sequence Types and Find Missing End Numbers' worksheet

Key stage:  KS 2

Curriculum topic:   Verbal Reasoning

Curriculum subtopic:   Number Sequences

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

Number detective, you’ve arrived just in time!  

We’re faced with a new puzzle and we hope you can help us solve it.  

 

Can you work out which number comes next in this sequence?

6, 8, 10, 12, 14, __

 

Did you get 16?

 

This is an even number sequence, and the next even number after 14 is 16.

 

Even numbers are numbers which end in 2, 4, 6, 8 or 0.


 

Which number is missing from this sequence?

3, 5, 7, __ , 11, 13

 

This is a sequence of odd numbers and the missing odd number, between 7 and 11, is 9.

 

Odd numbers are numbers which end in 1, 3, 5, 7 or 9.


 

Sometimes, sequences go up or down in multiples from your times tables.

 

Which times table does this sequence form part of? Can you figure out which number comes next?

3, 6, 9, 12, ___

 

This is the 3 times table, and the missing number is 15.



It’s now your turn to find the missing numbers.

Good luck, number detective!

We are counting on you...

What type of numbers appear in this sequence?

 

2, 4, 6, 8, 10

Odd numbers

Even numbers

What type of numbers appear in this sequence?

 

1, 3, 5, 7, 9, 11

Odd numbers

Even numbers

Look at the following number sequence.

 

Which number would come next?

 

4, 6, 8, 10, ?

Look at the following number sequence.

 

Which number would come next?

 

5, 7, 9, 11, 13, ?

Which number would come next in this sequence?

 

13, 15, 17, 19, ?

Which number would come next in this sequence?

 

14, 16, 18, 20, ?

Which number comes next in the following sequence?

 

5, 10, 15, 20, ?

Which number comes next in this sequence?

 

70, 80, 90, 100, ?

Which number comes next in the following sequence?

 

55, 60, 65, 70, ?

Match the following sequences to their sequence types.

Column A

Column B

4, 6, 8, 10, 12
Odd numbers
25, 30, 35, 40, 45
5 times table
11, 13, 15, 17, 19
Even numbers and 2 times table
120, 130, 140, 150, 160
10 times table
  • Question 1

What type of numbers appear in this sequence?

 

2, 4, 6, 8, 10

CORRECT ANSWER
Even numbers
EDDIE SAYS
Did you notice that these numbers end in 2, 4, 6, 8 and 0? We call these numbers even numbers. These numbers are also in our 2 times tables.
  • Question 2

What type of numbers appear in this sequence?

 

1, 3, 5, 7, 9, 11

CORRECT ANSWER
Odd numbers
EDDIE SAYS
Did you notice that these were odd numbers? Numbers that end in 1, 3, 5, 7 and 9 are called odd numbers.
  • Question 3

Look at the following number sequence.

 

Which number would come next?

 

4, 6, 8, 10, ?

CORRECT ANSWER
12
EDDIE SAYS
Did you notice that this sequence was going up in even numbers? This is the same as going up in the 2 times table. The next even number after 10 is 12. Keep looking out for those even and odd numbers, detective!
  • Question 4

Look at the following number sequence.

 

Which number would come next?

 

5, 7, 9, 11, 13, ?

CORRECT ANSWER
15
EDDIE SAYS
Did you notice that this was an odd number sequence? The next odd number after 11 is 13. Don't feel odd if you didn't spot the odd numbers! Just look out for numbers ending in 1, 3, 5, 7 and 9.
  • Question 5

Which number would come next in this sequence?

 

13, 15, 17, 19, ?

CORRECT ANSWER
21
EDDIE SAYS
This was another odd number sequence. The next odd number after 19 is 21. See, these odd numbers aren't so strange after all!
  • Question 6

Which number would come next in this sequence?

 

14, 16, 18, 20, ?

CORRECT ANSWER
22
EDDIE SAYS
This sequence is using numbers from our 2 times table, as all of the numbers are even. The next number in the 2 times tables is 22. How many 2s are in 22?
  • Question 7

Which number comes next in the following sequence?

 

5, 10, 15, 20, ?

CORRECT ANSWER
25
EDDIE SAYS
Did you notice that this sequence was going up in 5s? This sequence is using numbers from our 5 times table. The next number in our 5 times table is 25. How many 5s are in 25?
  • Question 8

Which number comes next in this sequence?

 

70, 80, 90, 100, ?

CORRECT ANSWER
110
EDDIE SAYS
What amount was this sequence increasing by each time? It's going up in 10s, and 10 more than 100 is 110. Remember to type your answer in figures, rather than words.
  • Question 9

Which number comes next in the following sequence?

 

55, 60, 65, 70, ?

CORRECT ANSWER
75
EDDIE SAYS
Did you notice that this sequence is going up in 5s? The next multiple of 5 is 75. Always check how each number gets to the next.
  • Question 10

Match the following sequences to their sequence types.

CORRECT ANSWER

Column A

Column B

4, 6, 8, 10, 12
Even numbers and 2 times table
25, 30, 35, 40, 45
5 times table
11, 13, 15, 17, 19
Odd numbers
120, 130, 140, 150, 160
10 times table
EDDIE SAYS
How many matches did you find? Here are some helpful tricks to help you with your detective work: Anything in the 2 times table ends in 2, 4, 6, 8 or 0. Anything in the 5 times table ends in a 5 or a 0. Anything in the 10 times table ends in a 0. Odd numbers end in 1, 3, 5, 7 or 9. Remember these tips for your work on number sequences moving forwards!
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