MATHEMATICS
CHRONOLOGICAL PROBLEMS.
Problem 1.
Rule. Cut off two cyphers, and divide the remaining figures by 4; if nothing remain, the year is a leap year.
Examples.
The year 1800. The year 1900.
4) 18/00 4) 19/00
4-2 4-3
The year 2000. The year 4000.
4) 20,00 4) 40,00
5 10
The year 100. The year 300.
4) 1,00 4) 3,00
0-1 0-3
The year 500. The year 1000.
4) 5,00 4) 10,00
1-1 2-2