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Mathematics Worksheet

📅 Time & Calendar

Chapter: Arithmetic · Level ★☆☆ · Time: 30 min
SCORE___ / 20
NameClassDate
After this worksheet you can
Apply the leap-year rule.Count odd days.Recall the number of days in each month.Reason about dates.
📚 Quick Recap

Calendar problems use patterns in days, weeks, and years to figure out things like what day a date falls on, or how leap years work.

🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4

1Is 2100 a leap year?
2Is 2400 a leap year?
3A leap year has how many odd days?
4A leap year has how many days?

🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11

5A leap year has days.
6A century year is a leap year only if divisible by .
7Is 2100 a leap year?
8Is 2400 a leap year?
9How many odd days does a leap year have?

🚀 Section C · Challenge ● CHALLENGE 5

10How many days are in April, June, September and November combined?
💭 Reflection — the most useful thing I learned:
A ___/4   B ___/11   C ___/5   Total ___/20 Teacher's Signature Parent's Signature
✂ answer key — fold or cut before handing out

1-A   2-B   3-B   4-B  |  5 366   6 400   7 = No (century year not divisible by 400)   8 = Yes (divisible by 400)   9 = 2  |  10 = 120

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