Month Values

January = 3

February = 6

March = 6

April = 2

May = 4

June = 0

July = 2

August = 5

September = 1

October = 3

November = 6

December = 1

Century Values

1700s = 2

1800s = 0

1900s = 5

2000s = 4

2100s = 2

Day of Week Values 

 Sunday = 1 

Monday = 2 

Tuesday = 3 

Wednesday = 4 

Thursday = 5 

Friday = 6 

Saturday = 0

 Reduction by Multiples of 7 Rule

 If a number is equal to or greater than 7, then you must subtract the greatest multiple of 7 to get a remainder between 0-6

 Examples for days of month = 5^th, 7^th, 8th, 16^th, and 25^th:

The 5^th is less than the number 7, so the resulting value would still be 5

The 7^th is equal to 7, so 7 minus 7 leaves a value of 0

 The 8^th is greater than 7, so 8 minus 7 leaves a value of 1

 The 16^th is greater than 7x2, so 16 minus 14 leaves a value of 2

The 25^th is greater than 7x3, so 25 minus 21 leaves a value of 4

Multiples of 7

7 x 1 = 7

7 x 2 = 14

7 x 3 = 21

7 x 4 = 28

7 x 5 = 35

7 x 7 = 49

7 x 8 = 56

7 x 9 = 63

7 x 10 = 70

7 x 11 = 77

7 x 12 = 84

7 x 13 = 91

7 x 14 = 98