1,3,5,7,9

0,2,4,6,8Chris Clements

Properties of Number

Odds and Even Numbers

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Learning Objective:

<Steps to success>

Whole numbers (numbers that we count) can also be

called odd or even numbers.This includes numbers like

1, 2, 3, 4… 136… 5265… and many, many more…

Odds and EvensIn this lesson you will

learn about odd and even numbers

When choosing two equal teams; it is best to have an

even number of participants.Do you know why?

Lets see; There are 10 ants who need to put into two equal teams.

Can it be done?

Team A Team B

Can you see why 10

is an even

number?

How many ants are there now?

10 + 5 = 15 so we now have 15 ants.

Five more ants come along.

What will happenwhen we put them into 2 teams?

Team A Team B

Can you see why 15

is an odd

number?

I’m the odd one out!

Odd numbers end in a 1, 3, 5, 7 or 9

Even Numbers

Even numbers end in a 0, 2, 4, 6 or 8

Odd Numbers

All the numbers in the 2 times table are even.

If a number is not in the 2 times table then it is odd.

Look at this number grid;

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50

51 52 53 54 55 56 57 58 59 60

61 62 63 64 65 66 67 68 69 70

71 72 73 74 75 76 77 78 79 80

81 82 83 84 85 86 87 88 89 90

91 92 93 94 95 96 97 98 99 100

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50

51 52 53 54 55 56 57 58 59 60

61 62 63 64 65 66 67 68 69 70

71 72 73 74 75 76 77 78 79 80

81 82 83 84 85 86 87 88 89 90

91 92 93 94 95 96 97 98 99 100

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50

51 52 53 54 55 56 57 58 59 60

61 62 63 64 65 66 67 68 69 70

71 72 73 74 75 76 77 78 79 80

81 82 83 84 85 86 87 88 89 90

91 92 93 94 95 96 97 98 99 100

All these

numbers can be called odd or even.

What do you

notice about

the odd number

s?

What do you notice about the even numbers?

continued

When finding odds and even numbers;

1) Look at the end digit (the units digit)2) If it ends in a 0, 2, 4, 6 or 8 then the

number is even3) If it ends in a 1, 3, 5, 7 or 9 then the

number is odd

Odds and Evens

Steps to success

Lets see how good you are;Sort these numbers into

two groups; odds and evens.

Odd Even

Lets have a go at some more;

Odd Even

Lets have a go at some more;

Odd Even

Activity

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Plenary

Which numbers do

not belong in this set?

Odd

Using these digit cards make

an even number. The

hundreds digit is greater than

3.