DNL Physics, Seconde
Numbers
1. Different writing
How do the Americans and the English write “one”, “seven” and “nine”?
2. Write and read these numbers : the integers
12 :
13 :
19 :
28 :
79 :
95 :
100 :
500 :
1.000 :
16,000 :
57,238 :
88,562 :
999,999 :
1,000,000 :
1,000,000,000 :
9,624,846,464 :
84,668,485 :
61,962,155 :
We will do some other examples on the board.
3. Write and read these numbers : decimal numbers
 The Americans and the English use the point as we use the comma and the comma to separate each
block of three numbers (thousand).
Example:
1.458 = one point four five eight.
459.124 = four hundred and fifty nine point one two four.
4,363.5 = four thousand three hundred and sixty-three point five.
0.05 = zero point zero five (or nought point nought five).
 How do you write and read “120 987,65” ?
 In French: “π” is 3,1416 but this number doesn’t exist like this in English. How do you write it?
 Does this number exist in French?
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09/03/2016
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