# Identify Sequence Types and Find Missing Numbers (Advanced Times Tables)

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

Key stage:  KS 2

Curriculum topic:   Verbal Reasoning

Curriculum subtopic:   Number Sequences

Difficulty level:

### 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 may go up or down in multiples from your times tables.

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

3, 6, 9, 12, __

This is the three 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...

Which times table is the following sequence using?

81, 90, 99, 108

3 times table

9 times table

4 times table

8 times table

Which times table is the following sequence using?

14, 21, 28, 35, 42

5 times table

6 times table

7 times table

8 times table

Which times table is the following sequence going up in?

30, 36, 42, 48, 54

3 times table

4 times table

5 times table

6 times table

Which number is missing from the following sequence?

14, 21, 28, __ , 42, 49

Which number is missing from the following sequence?

Fill in the blank space below.

Which number is missing from the following sequence?

Fill in the blank below.

Which number is missing from the following sequence?

54, 63, __ , 81, 90

Which number is missing from the following sequence?

44, 55, 66, __ , 88

Match the sequences to the times tables that they are using.

## Column B

33, 44, 55, 66
11 times table
56, 64, 72, 80
7 times table
21, 28, 35, 42
8 times table

Match the sequences below to the times table that they are using.

## Column B

9, 12, 15, 18
8 times table
16, 24, 32, 40
12 times table
12, 24, 36, 48
3 times table
• Question 1

Which times table is the following sequence using?

81, 90, 99, 108

9 times table
EDDIE SAYS
Hey number detective! Did you recognise these numbers from your 9 times table? 81 is 9 x 9 and it goes up in 9s from there. Which number would come next in the sequence?
• Question 2

Which times table is the following sequence using?

14, 21, 28, 35, 42

7 times table
EDDIE SAYS
This was a tricky one! We can start by ruling out the 5 times table as numbers in this times table only end in a 5 or a 0. If we count from 14 to 21, we can see that there is 7 between these numbers. So all of these numbers are in our 7 times table. Can you count up in 7s?
• Question 3

Which times table is the following sequence going up in?

30, 36, 42, 48, 54

6 times table
EDDIE SAYS
How much do we add to 30 to get to 36? These numbers are 6 apart and they are in our 6 times table. Keep an eye out for our times table sequences detective!
• Question 4

Which number is missing from the following sequence?

14, 21, 28, __ , 42, 49

35
EDDIE SAYS
Did you notice that this sequence was going up in the 7 times table? 7 more than 28 is 35. Can you work out how many 7s are in 35?
• Question 5

Which number is missing from the following sequence?

Fill in the blank space below.

EDDIE SAYS
Did you notice that these numbers were from our 6 times table? 6 more than 48 is 54 so this is the missing number in the sequence. Keep up that counting as I'm counting on you to solve our puzzles!
• Question 6

Which number is missing from the following sequence?

Fill in the blank below.

EDDIE SAYS
Use your number detective skills to count from the first number to the second. There are 12 numbers between. This means that we are counting up in 12s. What is 12 more than 36? Our missing number is 48. To count in 12s, I like to add 10 and then add 2 more.
• Question 7

Which number is missing from the following sequence?

54, 63, __ , 81, 90

72
EDDIE SAYS
Did you spot our nine times table with your number detective skills? Everything in the 9 times table has digits adding up to 9. If we look at the number 63, 6 + 3 = 9 and in 36, 3 + 6 = 9. The next multiple of 9 after 63 is 72. We can check it by adding the digits to ensure they reach 9. 7 + 2 = 9 so we can be pretty sure that we are correct!
• Question 8

Which number is missing from the following sequence?

44, 55, 66, __ , 88

77
EDDIE SAYS
Here are some numbers from our 11 times table! What is 11 more than 66? The missing number is 77.
• Question 9

Match the sequences to the times tables that they are using.

## Column B

33, 44, 55, 66
11 times table
56, 64, 72, 80
8 times table
21, 28, 35, 42
7 times table
EDDIE SAYS
How many did you match correctly? If we carefully count how many numbers there are between the first and second number in the sequence, it gives us a clue. So make sure you count carefully from one number to the next - detectives have to be very careful to follow the clues to the right answer!
• Question 10

Match the sequences below to the times table that they are using.

## Column B

9, 12, 15, 18
3 times table
16, 24, 32, 40
8 times table
12, 24, 36, 48
12 times table
EDDIE SAYS
We had our 3, 8 and 12 times tables here. How many did you spot? Great number skills on this activity detective! Remember to practise those times tables so you can become even speedier at spotting the sequences.
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