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Calendar Reasoning - Expert Level: year codes EXPERT

Strategic basic drills ★ for calendar reasoning: 20 expert-level problems. Worksheet 29 of 30 - Focus: year codes. Develop expertise in calendar calculations, day finding, date arithmetic with step-by-step solutions. Ideal for expert-level learners targeting challenging problems and time-bound practice.

📝 Worksheet 29 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Expert level

What you'll learn in this worksheet:
Your progress through Calendar Reasoning
Worksheet 29 of 30 (96% complete)

Question 1

If today is Thursday and tomorrow is Friday, what day was yesterday?
Using day relationships: If today is Thursday and tomorrow is Friday, what day was yesterday? Wednesday
weekday, sequence

Question 2

How many days did February have in the year 2029?
Year 2029 had 28 days in February.
leap-year, month

Question 3

In the calendar for May 2025, if the 1st falls on a Thursday, on which weekday will the 15th fall?
15th is 14 days later: (3+14)%7=3, so Thursday.
grid, position

Question 4

If the day before yesterday was not Saturday, which day CANNOT be today?
If today were Monday, then day before yesterday would be Saturday, which contradicts the condition.
conditional, logic

Question 5

In the calendar for Nov 2023, if the 1st falls on a Wednesday, on which weekday will the 15th fall?
15th is 14 days later: (2+14)%7=2, so Wednesday.
grid, position

Question 6

If the day after tomorrow is not Thursday, which day CANNOT be today?
If today were Tuesday, then day after tomorrow would be Thursday, which contradicts the condition.
conditional, logic

Question 7

In 2042, on which date does Easter Sunday fall?
Easter Sunday in 2042 falls on April 6.
festival, holiday

Question 8

How many odd days are there in 52 years starting from 1977? (Note: Odd days = remainder when total days are divided by 7)
Total days = 39×365 + 13×366 = 18993 days. Odd days = 18993 mod 7 = 2.
odd-days, span

Question 9

In England, when switching from the Julian to the Gregorian calendar in 1752, September 2 (Julian) was followed directly by which date in the Gregorian calendar?
England switched to the Gregorian calendar after 2 September 1752, skipping 11 days to align with the solar year. Therefore, 3 September became 14 September.
conversion, historical

Question 10

How many odd days are there in 100 years starting from 1938? (Note: Odd days = remainder when total days are divided by 7)
Total days = 75×365 + 25×366 = 36525 days. Odd days = 36525 mod 7 = 6.
odd-days, span

Question 11

In England, when switching from the Julian to the Gregorian calendar in 1752, September 2 (Julian) was followed directly by which date in the Gregorian calendar?
England switched to the Gregorian calendar after 2 September 1752, skipping 11 days to align with the solar year. Therefore, 3 September became 14 September.
conversion, historical

Question 12

If today is Thursday and yesterday was Wednesday, what day is tomorrow?
Using day relationships: If today is Thursday and yesterday was Wednesday, = tomorrow? Friday
weekday, sequence

Question 13

How many days did February have in the year 2022?
Year 2022 had 28 days in February.
leap-year, month

Question 14

How many days did February have in the year 2009?
Year 2009 had 28 days in February.
leap-year, month

Question 15

If the day after tomorrow is not Wednesday, which day CANNOT be today?
If today were Monday, then day after tomorrow would be Wednesday, which contradicts the condition.
conditional, logic

Question 16

In England, when switching from the Julian to the Gregorian calendar in 1752, September 2 (Julian) was followed directly by which date in the Gregorian calendar?
England switched to the Gregorian calendar after 2 September 1752, skipping 11 days to align with the solar year. Therefore, 3 September became 14 September.
conversion, historical

Question 17

In England, when switching from the Julian to the Gregorian calendar in 1752, September 2 (Julian) was followed directly by which date in the Gregorian calendar?
England switched to the Gregorian calendar after 2 September 1752, skipping 11 days to align with the solar year. Therefore, 3 September became 14 September.
conversion, historical

Question 18

If 26-02-2023 is a Sunday, what day is 28-03-2023?
30 days later: day shifts by 2 days. Sunday + 2 days = Tuesday.
chain, multi-step

Question 19

How many odd days are there in 100 years starting from 1876? (Note: Odd days = remainder when total days are divided by 7)
Total days = 76×365 + 24×366 = 36524 days. Odd days = 36524 mod 7 = 5.
odd-days, span

Question 20

In the calendar for Nov 2021, if the 1st falls on a Monday, on which weekday will the 15th fall?
15th is 14 days later: (0+14)%7=0, so Monday.
grid, position
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