78
Numbers written in words (harfiy ifodalar)
Textbook: Part 3, pp. 89–91
ЦельKnow the three ways numbers are written: in words, in Arabic digits and in Roman numerals.
Новые слова
number in words · harfiy ifodaArabic digit · arab raqamiRoman numeral · rim raqamicentury · asr
Объяснение
There are three ways to write a number: 1) in words: uchinchi qavat (third floor), yettinchi qator (seventh row); 2) in Arabic digits: 3-qavat, 7-qator, 2026-yil; 3) in Roman numerals: III bob (chapter III), XX asr (20th century). Of the Roman numerals we learn I – 1, V – 5, X – 10: IV – 4, XXI – 21. Centuries are usually written in Roman numerals. Time units: 1 century – one hundred years, 1 year – twelve months, 1 week – seven days, 1 day and night – twenty-four hours, 1 hour – sixty minutes.
Примеры
uchinchi sinf = 3-sinf = III sinf (third grade)
Hozir yigirma birinchi asr = XXI asr. (It is now the twenty-first century.)
Работа в классе
“Three ways”: children write the number on a card in three ways: beshinchi sinf – 5-sinf – V sinf.
Упражнения
1
Write in Roman numerals: to‘rtinchi sinf.
IV sinf
2
Write in words: 1 hafta – 7 kun.
bir hafta – yetti kun
3
How many hours are in a day and night? Write in words.
yigirma to‘rt soat