N

Numeration

Cardinal numbers from 1 through 1,000,000

ONES TENS HUNDREDS

PLACE VALUE

PLACE VALUE SONG

Comparing and Ordering Numbers

Ordinal

numbers

When objects are placed in order,we use ordinal numbers to tell their position.

Ordinal numbers are similar to the numbers that you learned before.

If five students ran a race,we would say that the student ran the fastest was in first place,the next student was in second place, the next student was in third place , and so on.

Listen and

repeat!

Even and odd numbers

EVEN AND ODD NUMBERS SONG

http://www.sheppardsoftware.com/mathgames/placevalue/fruit_shoot_place_value.htm

http://www.math-play.com/football-math-place-value-game/football-math-place-value.html

http://www.glencoe.com/sites/common_assets/mathematics/ebook_assets/vmf/VMF-Interface.html

http://www.sheppardsoftware.com/mathgames/monkeydrive/numbers/MDOddEven.htm

http://www.starrmatica.com/standalone/starrMaticaComparingNumbersCometoOrder.swf

THE END

Seventieth

Ninetieth

One hundredth

Eightieth

sixtieth

Fiftieth

Numbers expressing quantity

The Number 1,000,000,000

Example:

In English this number is a billion. This is very tricky for nations where 'a billion' has 12 zeros. 1,000,000,000,000 in English, however, is a trillion.

But don't worry, these numbers are even a bit problematic for native speakers: for a long time the British 'billion' had 12 zeros (a number with 9 zeros was called 'a thousand million')

Hundreds

Singular or plural?

Use 100 always with 'a' or 'one'.

100 - a hundred / one hundred

'a' can only stand at the beginning of a number.

100 - a hundred / one hundred

2,100 - two thousand, one hundred

Fortieth

Separation between hundreds and tens

Numbers are usually written in singular.

two hundred Euros

several thousand light years

The plural is only used with dozen, hundred, thousand, million, billion, if they are not modified by another number or expression (e.g. a few / several).

hundreds of Euros

thousands of light years

Hundreds and tens are usually separated by 'and' (in American English 'and' is not necessary).

110 - one hundred and ten

1,250 - one thousand, two hundred and fifty

2,001 - two thousand and one

Thousands and Millions

Use 1,000 and 1,000,000 always with 'a' or 'one'.

1,000 - a thousand / one thousand

201,000 - two hundred and one thousand

Use commas as a separator.

57,458,302

Thirthy-first

Thirtieth

Twenty-ninth

Twenty-eighth

Twenty-seventh

Twenty-sixth

Twenty-third

Twenty-Fourth

Twenty-fifth

Twenty-first

Twenty-second

Twentieth

Nineteenth

Eighteenth

Seventeenth

Fifteenth

Sixteenth

Fourteenth

Thirteenth

Second

twelfth

First

Eleventh

Ninth

Fourth

Tenth

Seventh

Sixth

Third

Fifth

Eighth