28
32 years
It was a 1,000 years long.
It has been 66 years from 1946 to 2011 :)
31
Take the last two digits on the current year. That number is how many years ago the 1990s were.
Including 1980, there are 9 leap years between 1980 and 2014. They are 1980, 1984, 1988, 1992, 1996, 2000, 2004, 2008 and 2012.
The Phillies won the baseball championship in 1980, and in 2008. They won twice.
4 times, on: * 1980 * 1986 * 1997 * 2003
Leap years are those years which are divisible by 4 EXCEPT for centuries when the century must be divisible by 400; they occur every four years (except possible when a century ends). 2000 IS divisible by 400 so it was a leap year. As 1980 was a leap year, by subtracting 1980 from the current year, dividing by 4 and ignoring any remainder, the number of leap years after 1980 is found. (2011 - 1980) ÷ 4 = 31 ÷ 4 = 7 r 3 → 7 leap years after 1980 → There were 8 leap years in 1980-2011, which were 1980, 1984, 1988, 1992, 1996, 2000, 2004, 2008 (These are also the years of the Summer Olympics.)
2064 − 1980 = 84 years
1976 1980 1984 1988 1992 1996 2000 2004 2008 2012
2. 1980 and 2008
32 years
1972, 1976, 1980, 1984, 1988, 1992, 1996, 2000, 2004 & 2008
2008 years = 6.33663074 × 1010 seconds.
1968, 1972, 1976, 1980, 1984, 1988, 1992, 1996, 2000, 2004, 2008 or 11.
There is a leap year every 4years. The last one was in 2008 so in the last 40year (since 1970) there have been 10: 2008 2004 2000 1996 1992 1988 1984 1980 1976 1972