In KS2 Maths as children advance to Year Five their knowledge of number sequences will increase. By now they should be able to recognise patterns that are increasing or decreasing by whatever amount in each step. They will also have a firm understanding of the properties of odd and even numbers and they will now be exposed to number sequences involving decimal numbers and fractions.

Number sequences involve finding a pattern in order to ascertain what the next number will be. Some patterns are straightforward, such as add 10, but others, like ones involving decimal numbers or fractions, can seem quite difficult to find. But once you know how, sequences with decimal numbers and fractions are just as easy to spot patterns in as ones made of whole numbers. It just takes a bit of practise.

Can you find the rules of these number sequences in this quiz for 9 -10 year olds?

1.

What will be the tenth number of this sequence? 22, 33, 44, 55, 66

108

110

115

121

The numbers are increasing by 11

2.

What is the next number of the following sequence? 64, 56, 48, 40, 32

35

28

26

24

The numbers are decreasing by 8

3.

Can you find the rule of this sequence? 0, 0.1, 0.2, 0.3, 0.4

The numbers increase in 0.1s

The numbers increase in 0.5s

The numbers increase in 1s

The numbers increase in 0.2s

The sequence would continue: 0.5, 0.6, 0.7, 0.8... etc

4.

The difference between an odd number and an even number is what?

Sometimes odd and sometimes even

Always odd

Always even

It always ends in 0

An odd + an odd = an even so an even - an odd = an odd

5.

The sum of three even numbers will be what?

Even

Odd

It will end in 0

It will end in 5

The sum of 2 even numbers will be even. If you add 2 of the 3 numbers and then add another even it is the same as adding 2 even numbers

6.

The sum of three odd numbers will be what?

Even

Odd

It will end in 0

It will end in 5

The sum of two odd numbers is even but add another odd number and the total will be odd

7.

Can you find the rule of this sequence? 6, 12, 18, 24, 30

The numbers increase in 6s

The numbers increase in 3s

The numbers increase in 5s

The numbers increase in 4s

This sequence is the 6 times table

8.

What is the next number of the following sequence? 18, 27, 36, 45

50

52

54

56

The numbers are increasing by 9

9.

The difference between two odd numbers is what?

Sometimes odd and sometimes even

Always odd

Always even

It always ends in 0

An odd + an even = an odd so an odd - an odd = an even

10.

Can you find the rule of this sequence? 14, 21, 28, 35

The numbers increase in 6s

The numbers increase in 7s

The numbers increase in 5s

The numbers increase in 9s

All of the numbers in this sequence are found in the 7 times table