Calendar Reasoning - Beginner-Intermediate Level: calendar puzzles BEGINNER-INTERMEDIATE

Intensive quick response training 🎯 drill: 20 beginner-intermediate-level calendar reasoning questions. Worksheet 10 of 30 hones your calendar puzzles abilities. Practice date arithmetic, leap year logic, month patterns under timed conditions. Best for developing students seeking building on fundamentals with moderate challenges.

📝 Worksheet 10 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Beginner-intermediate level

What you'll learn in this worksheet:
Your progress through Calendar Reasoning
Worksheet 10 of 30 (33% complete)

Question 1

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

Question 2

How many odd days are there in 100 years starting from 1820? (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.

Question 3

If 21-12-2011 is a Wednesday, what day is 20-03-2012?
90 days later: day shifts by 6 days. Wednesday + 6 days = Tuesday.

Question 4

How many odd days are there in 100 years starting from 1901? (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.

Question 5

In the following calendar grid for August 2022, how many Sundays are there? Mon Tue Wed Thu Fri Sat Sun 1 | 2 | 3 | 4 | 5 | 6 | 7 8 | 9 | 10 | 11 | 12 | 13 | 14 15 | 16 | 17 | 18 | 19 | 20 | 21 22 | 23 | 24 | 25 | 26 | 27 | 28 29 | 30 | 31 | | | |
In August 2022, Sundays fall on: 7, 14, 21, 28. Total: 4.

Question 6

How many days did February have in the year 2029?
Year 2029 had 28 days in February.

Question 7

If 1 January 2020 was a Wednesday, what day was 1 April 2020?
Calculated via Zeller's congruence: 1/4/2020 falls on Wednesday.

Question 8

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.

Question 9

A code says: 7/1 = Tuesday. What does 7/2 equal? (Use same year)
Next month same date: calculated day_name(7,2,2025)=Friday.

Question 10

In the following calendar grid for November 2022, how many Tuesdays are there? Mon Tue Wed Thu Fri Sat Sun | 1 | 2 | 3 | 4 | 5 | 6 7 | 8 | 9 | 10 | 11 | 12 | 13 14 | 15 | 16 | 17 | 18 | 19 | 20 21 | 22 | 23 | 24 | 25 | 26 | 27 28 | 29 | 30 | | | |
In November 2022, Tuesdays fall on: 1, 8, 15, 22, 29. Total: 5.

Question 11

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

Question 12

If 1 January 2022 was a Saturday, what day was 1 September 2022?
Calculated via Zeller's congruence: 1/9/2022 falls on Thursday.

Question 13

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

Question 14

In the following calendar grid for July 2030, how many Mondays are there? Mon Tue Wed Thu Fri Sat Sun 1 | 2 | 3 | 4 | 5 | 6 | 7 8 | 9 | 10 | 11 | 12 | 13 | 14 15 | 16 | 17 | 18 | 19 | 20 | 21 22 | 23 | 24 | 25 | 26 | 27 | 28 29 | 30 | 31 | | | |
In July 2030, Mondays fall on: 1, 8, 15, 22, 29. Total: 5.

Question 15

In the calendar for Jan 2020, 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.

Question 16

How many odd days are there in 400 years starting from 1920? (Note: Odd days = remainder when total days are divided by 7)
Total days = 303×365 + 97×366 = 146097 days. Odd days = 146097 mod 7 = 0.

Question 17

In 2020, on which date does Easter Sunday fall?
Easter Sunday in 2020 falls on April 12.

Question 18

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

Question 19

If 1 January 2020 was a Wednesday, what day was 1 August 2020?
Calculated via Zeller's congruence: 1/8/2020 falls on Saturday.

Question 20

If 1 January 2019 was a Tuesday, what day was 1 May 2019?
Calculated via Zeller's congruence: 1/5/2019 falls on Wednesday.
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