به انگلیسی

Roman numerals up to 1000

ریاضی · نمایش عدد و ارزش مکانی · سن ۹ تا ۱۰ سال

نام ______________________ تاریخ ____________

What is VI + VII as an ordinary number?
پاسخ: ______________
What does IV mean in Roman numerals?
- 6
- 5
- 1
- 4
What number does M stand for?
- 100
- 1000
- 10000
CM means 1000 + 100 = 1100.
دور یکی دایره کشیدن: درست نادرست
Read MCMXCIX. What year is it?
- 1999
- 1899
- 1909
Lena says MCMXCIX = 1996. Is Lena right?
دور یکی دایره کشیدن: درست نادرست
What is MCMXCIX in ordinary numbers?
- 1,999
- 1,996
- 2,001
- 1,899
What is CD in Roman numerals?
- 600
- 400
- 150
A poster says a building was finished in the year MCDXCII. A friend says that's 1392. Is the friend right?
- No, it's 1592
- Yes, that's correct
- No, it's 1492
What is XL as an ordinary number?
پاسخ: ______________

پاسخ‌نامه

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13 · VI = 6 and VII = 7, so 6 + 7 = 13.
4 · IV means 4: the I before the V subtracts 1 from 5.
1000 · M is the symbol for 1000, the largest common Roman numeral value.
نادرست · C comes before M, so you subtract: 1000 minus 100 equals 900, not 1100.
1999 · M = 1000, CM = 900, XC = 90, IX = 9. Add them together: 1999.
نادرست · Lena is wrong: MCMXCIX = 1999.
1,999 · M + CM + XC + IX = 1000 + 900 + 90 + 9 = 1,999.
400 · C before D means subtract: 500 minus 100 equals 400.
No, it's 1492 · M = 1000, CD = 400, XC = 90, II = 2. That adds up to 1492, not 1392.
40 · XL = 50 - 10 = 40.