22 Oktober 2024
Summary
TLDRIn this video, the importance of understanding numbers in English is emphasized, particularly in engineering contexts. The speaker explains the difference between cardinal and ordinal numbers, detailing how to pronounce and write numbers correctly, especially from 21 to 99 and beyond. They also discuss how to express years, flight numbers, and the various ways to say zero in different contexts. Additionally, fractions and decimal numbers are covered, with a focus on reading and memorizing these concepts. Overall, the video serves as a comprehensive guide to effectively using numbers in English.
Takeaways
- 😀 Numbers are essential in everyday life, especially in engineering.
- 📊 Cardinal numbers represent quantity (e.g., one, two, three), while ordinal numbers indicate order (e.g., first, second, third).
- 🔢 For numbers between 21 and 99, use a dash to connect the tens and units (e.g., 25 as 20-5).
- 🏷️ In British English, add 'and' before the last part when saying numbers over 100 (e.g., 203 as two hundred and three).
- 🇺🇸 American English sometimes omits 'and' in larger numbers (e.g., saying 2003 as 'two thousand three').
- 💯 Thousands follow a similar pattern, and numbers like 1800 can be shortened when spoken.
- 📅 Years are typically spoken in two parts (e.g., 1865 as eighteen sixty-five), with special cases for years ending in double zeros.
- 🔠 For four-digit numbers, read each digit separately (e.g., 561 as five six one).
- 🚀 Flight numbers are expressed in two parts or as a single number (e.g., 111 as one one one).
- 🔢 The number zero has various terms based on context: 'nil' in sports, 'love' in tennis, and 'zero' in temperatures.
Q & A
What are cardinal numbers?
-Cardinal numbers are the regular numbers we use to count things, such as one, two, and three.
What are ordinal numbers?
-Ordinal numbers indicate the order of things, like first, second, and third.
How should numbers between 21 and 99 be written?
-When writing numbers between 21 and 99, if the second number isn't zero, a dash should be placed between the two parts, such as 20-5 for 25.
How are numbers over 100 expressed in British and American English?
-In British English, numbers over 100 often include the word 'and' before the last part, like 203 as 'two hundred and three.' In American English, this word can be skipped.
What is the shorter way to say numbers in the thousands?
-For numbers in the thousands, such as 1,840, you can say 1800 as a shorter form.
How do we usually say the years in English?
-Years are typically broken into two parts, for example, 1865 is said as 'eighteen sixty-five.' For years ending in double zeros, like 1900, it is pronounced differently.
How do we express the number zero in different contexts?
-Zero can be expressed in various ways: 'nought' in British English, 'zero' in American English, 'nil' in sports, and 'love' in tennis.
How are fractions represented in English?
-Fractions are parts of a whole number, expressed as 'a half,' 'a third,' or 'three quarters.'
How are decimal numbers read?
-When reading decimal numbers, we say 'point' for the dot. For example, 0.5 is read as 'zero point five.'
What key rules should be remembered about reading numbers?
-Key rules include: cardinal numbers for counting, ordinal numbers for order, a dash for numbers between 21 and 99, using 'and' in British English for numbers over 100, breaking years into two parts, different expressions for zero, and memorizing fractions and decimals.
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