# 4 - Large numbers

Now we will learn to read or write large numbers. Study the following examples then try to do the problems!

## The thousands

The number 1000 is "one thousand". The number after 1000 is 1001 "one thousand and one". The number after 1001 is 1002 "one thousand and two"... Look at the following examples with thousands numbers.

 Number 1 099 1 100 9 075 9 999 10 000 10 200 15 008 99 999 100 000 100 001 Number with letters One thousand ninety nine One thousand one hundred Nine thousand seventy five Nine thousand nine hundred ninety nine Ten thousand Ten thousand two hundred Fifteen thousand height Ninety nine thousand nine hundred ninety nine One hundred thousand One hundred thousand and one

Training
How do you write with figures the number One thousand fifty ?

## The millions

999 999 is "Nine hundred ninety nine thousand nine hundred ninety nine". The following number, 1 000 000, is "one million". When a number is made of 6 to 8 figures, you must say first the number of millions, then the number of thousands, finally the hundreds, tens, and units.

Examples :

 Number with figures 1 001 001 1 111 111 123 456 789 101 010 101 Number with letters One million one thousand one One million one hundred eleven thousand one hundred eleven One hundred and twenty three millions four hundred fifty six thousand seven hundred eighty nine One hundred one million ten thousand one hundred one.

Training
How do you write with figures (without spaces) the number One hundred ten million ten thousand one ?

## The billions

1 000 000 000 is "one billion".
When a number is made of 10 to 12 figures, you say first the number of billions, then the number of millions, then the number of thousands, then the hundreds, tens, and units. Examples :

 Number with figures 1 001 001 001 111 111 111 111 123 456 789 010 10 101 010 101 Number with letters One billion one million one thousand and one One hundred billion one hundred eleven million one hundred eleven thousand one hundred eleven One hundred twenty three billion four hundred fifty six million seven hundred eighty nine thousand and ten Ten billion one hundred one million ten thousand one hundred and one.

Training
How do you write with figures (without spaces) the number Fourty billion seventy millions five hundred twelve ?

## The very large numbers

1 000 000 000 is "one billion".

1 000 000 000 000 is "one thousand billion".

1 000 000 000 000 000 is "one million billion".

1 000 000 000 000 000 000 is "one billion billion".

1 000 000 000 000 000 000 000 is "thousand billion billion" and so on...

When a number is made of more than 12 figures, you say first the number of billions, then the numbers of millions, then the numbers of thousands, then the hundreds, tens, and units.