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Reading & writing numbers
Numbers can be written in 2 ways –
FIGURES or WORDS.
FIGURES use 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and
may even use – and .
Examples include 34, 1063, 0.75, -25
WORDS use letters, and usually take longer to write.
Examples include twelve, seventy-one, one million.
Reading & writing numbers
FIGURES are made up of DIGITS (0, 1, 2, 3, 4, 5, 6,
7, 8, 9) and are usually easy to write, but can be
tricky to say or write in WORDS.
In order to put FIGURES into WORDS, we must try
to imagine that the number is in a PLACE VALUE
table like this one.
Hundred Ten Unit
Reading & writing numbers
The number 147 would be written in this way:
Hundred Ten Unit
1 4 7
Hundred Ten Unit
4 0 9
And the number 409 would be written in this way:
Reading & writing numbers
In order to say our numbers we need to follow a few
simple rules.
•If you remember how to write 1 – 20 in words, most
of the rest of the numbers are easy.
1 – one 6 – six 11 – eleven 16 - sixteen
2 – two 7 – seven 12 – twelve 17 - seventeen
3 – three 8 – eight 13 – thirteen 18 - eighteen
4 – four 9 – nine 14 – fourteen 19 - nineteen
Reading & writing numbers
In order to say our numbers we need to follow a few
simple rules.
•Other words you will need to know are:
30 – thirty (not threety) 80 – eighty
40 – forty (not fourty) 90 - ninety
50 – fifty (not fivety) ?00 - …hundred
60 – sixty ? 000 - …thousand
70 – seventy ? 000 000 - …million
Reading & writing numbers
In order to say our numbers we need to follow a few
simple rules.
•All TWO-DIGIT numbers higher than 20 have a
hyphen in-between them (unless they end with a 0).
45 – forty-five 71 – seventy-one
Watch out for 5 digit numbers!
54 875 – fifty-four thousand, eight hundred and
seventy-five
Reading & writing numbers
In order to say our numbers we need to follow a few
simple rules.
• If a column has a 0 in it, you don’t need to say
anything for that column.
500 – Five hundred (not … and noughty-nought!)
603 – Six hundred and three
2007 – Two thousand and seven
Reading & writing numbers
Going back to our table, we can use our rules to
name these numbers.
Hundred Ten Unit
1 4 7
One hundred forty seven
One hundred and forty-seven
Reading & writing numbers
Going back to our table, we can use our rules to
name these numbers.
Hundred Ten Unit
4 0 9
four hundred nine
Four hundred and nine
Reading & writing numbers
Have a think about how to write the following
numbers:
117 –
591 –
4 921 –
Reading & writing numbers
Did you get it?
117 – One hundred and seventeen
591 –
4 921 –
Reading & writing numbers
Did you get it?
117 – One hundred and seventeen
591 – Five hundred and ninety-one
4 921 –
Reading & writing numbers
Did you get it?
117 – One hundred and seventeen
591 – Five hundred and ninety-one
4 921 – Four thousand, nine hundred and twenty-one.
Reading & writing numbers
How about 23 580 ? How would you attempt this
one?
Reading & writing numbers
How about 23 580 ? Think about the place value
table, adding other columns as needed.
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
   
             
Reading & writing numbers
How about 23 580 ? Put the digits in…
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
     2  3  5  8 0 
             
Reading & writing numbers
How about 23 580 ? Work out the WORDS
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
     2  3  5  8 0 
   
Twenty
thousand 
Three
thousand 
Five
hundred   eighty  
Reading & writing numbers
How about 23 580 ? Try to put them together.
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
     2  3  5  8 0 
   
Twenty
thousand 
Three
thousand 
Five
hundred   eighty  
Twenty thousand and three thousand become
Twenty-three thousand
Reading & writing numbers
How about 23 580 ? Try to put them together.
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
     2  3  5  8 0 
   
Twenty-three
thousand 
Five
hundred   eighty  
Remember that there is nothing in the last box!
Reading & writing numbers
How about 23 580 ? Try to put them together.
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
     2  3  5  8 0 
   
Twenty-three
thousand 
Five
hundred   eighty  
Our number is:
Twenty-three thousand, five hundred and eighty
Reading & writing numbers
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
2 5 1 8 5 6
 3 6  0 5 0 2 9
Can you try:
Reading & writing numbers
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
2 5 1 8 5 6
 3 6  0 5 0 2 9
Did you get…
Two hundred and fifty-one thousand, eight hundred
and fifty-six
and
Three million, six hundred and five thousand and
twenty-nine?
Reading & writing numbers
Can you try…?
1 058
12 869
3 010
89 456
725 369
1 256 170
Reading & writing numbers
Remember when we said…
“Numbers can be written in 2 ways –
FIGURES or WORDS.”
You can now convert FIGURES into WORDS.
We are now going to look at converting
WORDS to FIGURES.
Reading & writing numbers
A common test question starts with:
“Write in figures…” and then your teacher reads out
a number in WORDS.
Here you have to convert WORDS into FIGURES.
Reading & writing numbers
How could we convert
seventeen thousand and three?
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
Start with thinking about a place value box.
Think about where you can write in numbers.
Reading & writing numbers
How could we convert
seventeen thousand and three?
Seventeen uses 2 boxes as it is 17. Seventeen
thousand will also use 2 boxes, only further to the
left!
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
Seventeen thousand
Reading & writing numbers
How could we convert
seventeen thousand and three?
Fill in the rest of the numbers.
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
Seventeen thousand three
Reading & writing numbers
How could we convert
seventeen thousand and three?
Try to convert any remaining boxes.
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
Seventeen thousand three
1 7 3
Reading & writing numbers
How could we convert
seventeen thousand and three?
Fill in the empty boxes with a 0. Remember, we don’t
need anything in the first 2 boxes.
Million Hundred Ten (Unit) Hundred Ten Unit
  Thousand Thousand Thousand      
Seventeen thousand three
1 7 0 0 3
Reading & writing numbers
How could we convert
seventeen thousand and three?
So our number is 17003
We put a space every 3 digits from the right,
starting with the decimal point if there is one.
17 003 or 17,003
(remember, some people put a comma instead!)
Reading & writing numbers
Final skills
•Minus (-) sometimes comes before a number
•If there is a decimal point, we don’t use tens,
hundreds, thousands, etc to say the numbers after
the point, we just list the digits
E.g. 17.456 is seventeen point four five six, not
Seventeen point four hundred and fifty-six

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Reading and writing_numbers

  • 1. Reading & writing numbers Numbers can be written in 2 ways – FIGURES or WORDS. FIGURES use 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and may even use – and . Examples include 34, 1063, 0.75, -25 WORDS use letters, and usually take longer to write. Examples include twelve, seventy-one, one million.
  • 2. Reading & writing numbers FIGURES are made up of DIGITS (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) and are usually easy to write, but can be tricky to say or write in WORDS. In order to put FIGURES into WORDS, we must try to imagine that the number is in a PLACE VALUE table like this one. Hundred Ten Unit
  • 3. Reading & writing numbers The number 147 would be written in this way: Hundred Ten Unit 1 4 7 Hundred Ten Unit 4 0 9 And the number 409 would be written in this way:
  • 4. Reading & writing numbers In order to say our numbers we need to follow a few simple rules. •If you remember how to write 1 – 20 in words, most of the rest of the numbers are easy. 1 – one 6 – six 11 – eleven 16 - sixteen 2 – two 7 – seven 12 – twelve 17 - seventeen 3 – three 8 – eight 13 – thirteen 18 - eighteen 4 – four 9 – nine 14 – fourteen 19 - nineteen
  • 5. Reading & writing numbers In order to say our numbers we need to follow a few simple rules. •Other words you will need to know are: 30 – thirty (not threety) 80 – eighty 40 – forty (not fourty) 90 - ninety 50 – fifty (not fivety) ?00 - …hundred 60 – sixty ? 000 - …thousand 70 – seventy ? 000 000 - …million
  • 6. Reading & writing numbers In order to say our numbers we need to follow a few simple rules. •All TWO-DIGIT numbers higher than 20 have a hyphen in-between them (unless they end with a 0). 45 – forty-five 71 – seventy-one Watch out for 5 digit numbers! 54 875 – fifty-four thousand, eight hundred and seventy-five
  • 7. Reading & writing numbers In order to say our numbers we need to follow a few simple rules. • If a column has a 0 in it, you don’t need to say anything for that column. 500 – Five hundred (not … and noughty-nought!) 603 – Six hundred and three 2007 – Two thousand and seven
  • 8. Reading & writing numbers Going back to our table, we can use our rules to name these numbers. Hundred Ten Unit 1 4 7 One hundred forty seven One hundred and forty-seven
  • 9. Reading & writing numbers Going back to our table, we can use our rules to name these numbers. Hundred Ten Unit 4 0 9 four hundred nine Four hundred and nine
  • 10. Reading & writing numbers Have a think about how to write the following numbers: 117 – 591 – 4 921 –
  • 11. Reading & writing numbers Did you get it? 117 – One hundred and seventeen 591 – 4 921 –
  • 12. Reading & writing numbers Did you get it? 117 – One hundred and seventeen 591 – Five hundred and ninety-one 4 921 –
  • 13. Reading & writing numbers Did you get it? 117 – One hundred and seventeen 591 – Five hundred and ninety-one 4 921 – Four thousand, nine hundred and twenty-one.
  • 14. Reading & writing numbers How about 23 580 ? How would you attempt this one?
  • 15. Reading & writing numbers How about 23 580 ? Think about the place value table, adding other columns as needed. Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand                        
  • 16. Reading & writing numbers How about 23 580 ? Put the digits in… Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand            2  3  5  8 0               
  • 17. Reading & writing numbers How about 23 580 ? Work out the WORDS Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand            2  3  5  8 0      Twenty thousand  Three thousand  Five hundred   eighty  
  • 18. Reading & writing numbers How about 23 580 ? Try to put them together. Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand            2  3  5  8 0      Twenty thousand  Three thousand  Five hundred   eighty   Twenty thousand and three thousand become Twenty-three thousand
  • 19. Reading & writing numbers How about 23 580 ? Try to put them together. Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand            2  3  5  8 0      Twenty-three thousand  Five hundred   eighty   Remember that there is nothing in the last box!
  • 20. Reading & writing numbers How about 23 580 ? Try to put them together. Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand            2  3  5  8 0      Twenty-three thousand  Five hundred   eighty   Our number is: Twenty-three thousand, five hundred and eighty
  • 21. Reading & writing numbers Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand       2 5 1 8 5 6  3 6  0 5 0 2 9 Can you try:
  • 22. Reading & writing numbers Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand       2 5 1 8 5 6  3 6  0 5 0 2 9 Did you get… Two hundred and fifty-one thousand, eight hundred and fifty-six and Three million, six hundred and five thousand and twenty-nine?
  • 23. Reading & writing numbers Can you try…? 1 058 12 869 3 010 89 456 725 369 1 256 170
  • 24. Reading & writing numbers Remember when we said… “Numbers can be written in 2 ways – FIGURES or WORDS.” You can now convert FIGURES into WORDS. We are now going to look at converting WORDS to FIGURES.
  • 25. Reading & writing numbers A common test question starts with: “Write in figures…” and then your teacher reads out a number in WORDS. Here you have to convert WORDS into FIGURES.
  • 26. Reading & writing numbers How could we convert seventeen thousand and three? Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand       Start with thinking about a place value box. Think about where you can write in numbers.
  • 27. Reading & writing numbers How could we convert seventeen thousand and three? Seventeen uses 2 boxes as it is 17. Seventeen thousand will also use 2 boxes, only further to the left! Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand       Seventeen thousand
  • 28. Reading & writing numbers How could we convert seventeen thousand and three? Fill in the rest of the numbers. Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand       Seventeen thousand three
  • 29. Reading & writing numbers How could we convert seventeen thousand and three? Try to convert any remaining boxes. Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand       Seventeen thousand three 1 7 3
  • 30. Reading & writing numbers How could we convert seventeen thousand and three? Fill in the empty boxes with a 0. Remember, we don’t need anything in the first 2 boxes. Million Hundred Ten (Unit) Hundred Ten Unit   Thousand Thousand Thousand       Seventeen thousand three 1 7 0 0 3
  • 31. Reading & writing numbers How could we convert seventeen thousand and three? So our number is 17003 We put a space every 3 digits from the right, starting with the decimal point if there is one. 17 003 or 17,003 (remember, some people put a comma instead!)
  • 32. Reading & writing numbers Final skills •Minus (-) sometimes comes before a number •If there is a decimal point, we don’t use tens, hundreds, thousands, etc to say the numbers after the point, we just list the digits E.g. 17.456 is seventeen point four five six, not Seventeen point four hundred and fifty-six