NUMBERS
You will be working with numbers all the time, so you need to be aware of them, how we pronounce them individually and mathematical formulas. Let’s have a closer look at how we read and write them:
Cardinal numbers are:
0:ZERO 315: THREE HUNDRED AND FIFTEEN
1 : ONE 6,155: SIX THOUSAND ONE HUNDRED AND FIFTY FIVE
2 : TWO 2,340,901: TWO MILLION THREE HUNDRED AND FORTY THOUSAND NINE HUNDRED AND ONE
10 : TEN 1,000,000,000: ONE BILLION
100: ONE (A)HUNDRED 1,000,000 : ONE MILLION
1,000:ONE/A THOUSAND
Ordinal numbers and dates
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| 1st first | 31st thirty first |
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| 2nd second | 1,000,000th one millionth |
| 3rd third | 1st January: first of january |
| 4th fourth | 3rd April: third of April |
| 5th fifth | 15th May 2009: fifteenth of May two thousand and nine |
| 10th tenth | 22nd June 1990: twenty second of June nineteen and ninety |
| 25th twenty fifth | |
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| 1 I |
Arithmetic
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| --- | --- |
| + ADDITION | 5+4=9: five plus four equals nine |
| -SUBSTRUCTION | 5-4=1: five minus four equals one |
| \Multiplication | 5\4=20: five times four gives twenty |
| :Division | 20:4=5: twenty divided by four gives five |
Practice
Task One
Write down these numbers or dates and fractions:
1,000,000,000: one billion
21st May: the twenty first of May
35% : thirty five per cent
8,237: eight thousand two hundred and thirty seven
6541: six thousand five hundred fourty one
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$4,320 four billion three hudred twenty
9.369nine thousand three hndred sixty nine
34.65 g : thirty four grams point six five
Three minus three plus sixteen divided by four equals four:3-3+16/4=4
Twelve plus six divided by nine times ten minus two equals eighteen:12+6/9\*10=18
Sixteen point five plus one point three four minus ten point eight six equals six point nine eight:16+5+1.34-10.86=6.98
The square root of thirty-six multiplied by four cubed equals three hundred eighty-four:
Task Two: Write the following in words not in numbers:
5% of the population owned 85% of the country’s wealth in 1995: five per cent...eighty five per cent... nineteen ninety-five
About 2,000,000 people live in Slovenia: two million
55.2% of adults have false teeth: fifty-five point two per cent
6 x 7 = 42 : six times seven equals foyrty-two
That is 33,923 km from here: ....thirty-three thousand nine hundred twenty three
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23,250 umbrellas are approximately sold in England every year. It was extremely cold, about -20 degrees Celsius: twenty-three thousand two hundred-fifty
Task Three: Now, go online and google how to write the following fractions, decimals and percentages (the answer in the video)
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| --- | --- | --- |
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| 2 ½ : | Two and a half | |
| 3 ¼ : | Three quarters | |
| 25% : | Twenty five per cent | |
| 99% | : ninety nine per cent | |
| 1.33 : one point three three | | |
| 6.7895: six point seven eight nine five | | |