Calendar math worksheet for students to answer questions using a calendar.
A worksheet titled "Calendars" with 12 questions about months, days, dates, and holidays, featuring a small calendar image in the top right corner.
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Show Answer Key & Explanations
Step-by-step solution for: Calendar Math Worksheets
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Show Answer Key & Explanations
Step-by-step solution for: Calendar Math Worksheets
Here is the solution to the calendar worksheet, with explanations for each answer:
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1. How many months are in a year?
✔ Answer: 12
*Explanation:* A standard calendar year has 12 months: January, February, March, April, May, June, July, August, September, October, November, December.
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2. How many days are in a week?
✔ Answer: 7
*Explanation:* A week consists of 7 days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.
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3. How many days are in April?
✔ Answer: 30
*Explanation:* April is one of the months with 30 days. (Remember the rhyme: “30 days hath September, April, June, and November…”)
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4. This year, what day of the week does December 30th fall on?
✔ Answer: Tuesday *(as of 2025)*
*Explanation:* Since the current date is Monday, October 13, 2025, we can calculate forward:
- October has 31 days → from Oct 13 to Oct 31 = 18 days left
- November has 30 days
- December 30 is 30 days into December
Total days from Oct 13 to Dec 30: 18 (Oct) + 30 (Nov) + 30 (Dec) = 78 days
78 ÷ 7 = 11 weeks and 1 extra day → Monday + 1 day = Tuesday
*(Note: If you’re using this worksheet in a different year, check a calendar — but since today is Oct 13, 2025, we use 2025.)*
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5. What is the seventh month of the year?
✔ Answer: July
*Explanation:* Counting from January:
1. January
2. February
3. March
4. April
5. May
6. June
7. July
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6. Write the date that is six days after February 9th.
✔ Answer: February 15
*Explanation:* 9 + 6 = 15 → So, six days after Feb 9 is Feb 15.
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7. What month comes right after November?
✔ Answer: December
*Explanation:* The order of months: …October → November → December → January…
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8. Write the date that falls five days before October 2nd.
✔ Answer: September 27
*Explanation:* October 2 minus 5 days:
Oct 1 → 1 day before
Sept 30 → 2 days before
Sept 29 → 3 days before
Sept 28 → 4 days before
Sept 27 → 5 days before
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9. Write the date that is fifteen days after May 25.
✔ Answer: June 9
*Explanation:* May has 31 days.
From May 25 to May 31 = 6 days
We need 15 total → 15 – 6 = 9 days into June → June 9
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10. Greg’s birthday is the 10 days after Halloween. What is the date of his birthday?
✔ Answer: November 10
*Explanation:* Halloween is always October 31.
10 days after Oct 31:
Nov 1 (day 1), Nov 2 (day 2), ..., Nov 10 (day 10) → November 10
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11. Which holiday comes first each year: St. Patrick’s Day or Valentine’s Day?
✔ Answer: Valentine’s Day
*Explanation:*
- Valentine’s Day = February 14
- St. Patrick’s Day = March 17
Since February comes before March, Valentine’s Day comes first.
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12. How many days are in this year?
✔ Answer: 365
*Explanation:* 2025 is not a leap year (leap years are divisible by 4, except century years not divisible by 400 — 2025 ÷ 4 = 506.25 → not whole). So it has 365 days.
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1. 12
2. 7
3. 30
4. Tuesday
5. July
6. February 15
7. December
8. September 27
9. June 9
10. November 10
11. Valentine’s Day
12. 365
Let me know if you’d like a printable version or want to adjust for a different year!
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1. How many months are in a year?
✔ Answer: 12
*Explanation:* A standard calendar year has 12 months: January, February, March, April, May, June, July, August, September, October, November, December.
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2. How many days are in a week?
✔ Answer: 7
*Explanation:* A week consists of 7 days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.
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3. How many days are in April?
✔ Answer: 30
*Explanation:* April is one of the months with 30 days. (Remember the rhyme: “30 days hath September, April, June, and November…”)
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4. This year, what day of the week does December 30th fall on?
✔ Answer: Tuesday *(as of 2025)*
*Explanation:* Since the current date is Monday, October 13, 2025, we can calculate forward:
- October has 31 days → from Oct 13 to Oct 31 = 18 days left
- November has 30 days
- December 30 is 30 days into December
Total days from Oct 13 to Dec 30: 18 (Oct) + 30 (Nov) + 30 (Dec) = 78 days
78 ÷ 7 = 11 weeks and 1 extra day → Monday + 1 day = Tuesday
*(Note: If you’re using this worksheet in a different year, check a calendar — but since today is Oct 13, 2025, we use 2025.)*
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5. What is the seventh month of the year?
✔ Answer: July
*Explanation:* Counting from January:
1. January
2. February
3. March
4. April
5. May
6. June
7. July
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6. Write the date that is six days after February 9th.
✔ Answer: February 15
*Explanation:* 9 + 6 = 15 → So, six days after Feb 9 is Feb 15.
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7. What month comes right after November?
✔ Answer: December
*Explanation:* The order of months: …October → November → December → January…
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8. Write the date that falls five days before October 2nd.
✔ Answer: September 27
*Explanation:* October 2 minus 5 days:
Oct 1 → 1 day before
Sept 30 → 2 days before
Sept 29 → 3 days before
Sept 28 → 4 days before
Sept 27 → 5 days before
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9. Write the date that is fifteen days after May 25.
✔ Answer: June 9
*Explanation:* May has 31 days.
From May 25 to May 31 = 6 days
We need 15 total → 15 – 6 = 9 days into June → June 9
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10. Greg’s birthday is the 10 days after Halloween. What is the date of his birthday?
✔ Answer: November 10
*Explanation:* Halloween is always October 31.
10 days after Oct 31:
Nov 1 (day 1), Nov 2 (day 2), ..., Nov 10 (day 10) → November 10
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11. Which holiday comes first each year: St. Patrick’s Day or Valentine’s Day?
✔ Answer: Valentine’s Day
*Explanation:*
- Valentine’s Day = February 14
- St. Patrick’s Day = March 17
Since February comes before March, Valentine’s Day comes first.
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12. How many days are in this year?
✔ Answer: 365
*Explanation:* 2025 is not a leap year (leap years are divisible by 4, except century years not divisible by 400 — 2025 ÷ 4 = 506.25 → not whole). So it has 365 days.
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✔ Final Answers Summary:
1. 12
2. 7
3. 30
4. Tuesday
5. July
6. February 15
7. December
8. September 27
9. June 9
10. November 10
11. Valentine’s Day
12. 365
Let me know if you’d like a printable version or want to adjust for a different year!
Parent Tip: Review the logic above to help your child master the concept of 1st grade calendar worksheet.
