DATE function construction in Excel - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the formula to create a date for January 15, 2024.

Excel

=DATE([1], 1, 15)

Drag options to blanks, or click blank then click option'

A1

B15

C2024

D2023

Attempts:

3 left

💡 Hint

Common Mistakes

Using the day or month number instead of the year.

Confusing the order of arguments in the DATE function.

The DATE function's first argument is the year. To create January 15, 2024, the year must be 2024.

2fill in blank

medium

Complete the formula to create a date for March 10, 2023.

Excel

=DATE(2023, [1], 10)

Drag options to blanks, or click blank then click option'

A10

B15

C2023

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using the day number instead of the month.

Mixing up the order of arguments.

The second argument in DATE is the month. For March, use 3.

3fill in blank

hard

Fix the error in the formula to create a date for July 4, 2022.

Excel

=DATE(2022, 7, [1])

Drag options to blanks, or click blank then click option'

A4

B7

C14

D2022

Attempts:

3 left

💡 Hint

Common Mistakes

Using the month or year instead of the day.

Entering a day number that is too large for the month.

The third argument in DATE is the day. For July 4, use 4.

4fill in blank

hard

Fill both blanks to create a date for December 25, 2025.

Excel

=DATE([1], [2], 25)

Drag options to blanks, or click blank then click option'

A2025

B24

C12

D11

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the year and month.

Using the wrong month number.

The first argument is the year (2025), and the second is the month (12 for December).

5fill in blank

hard

Fill all three blanks to create a date for February 29, 2020 (a leap year).

Excel

=DATE([1], [2], [3])

Drag options to blanks, or click blank then click option'

A2020

B2

C29

D28

Attempts:

3 left

💡 Hint

Common Mistakes

Using 28 instead of 29 for the day in a leap year.

Mixing up the order of year, month, and day.

2020 is a leap year, so February (2) has 29 days. The DATE function needs year=2020, month=2, day=29.

Practice

1. What does the Excel function =DATE(2024, 5, 10) return?

easy

A. Error because of wrong syntax

B. October 5, 2024

C. 2024-05-10 as text

D. May 10, 2024

Solution

1. Step 1: Understand the DATE function parameters

   The DATE function takes year, month, and day in that order: DATE(year, month, day).

2. Step 2: Interpret the given values

   Year is 2024, month is 5 (May), and day is 10, so the date is May 10, 2024.

3. Final Answer:

   May 10, 2024 -> Option D

4. Quick Check:

   DATE(2024,5,10) = May 10, 2024 [OK]

Hint: Remember DATE(year, month, day) builds a real date [OK]

Common Mistakes:

• Confusing month and day order
• Expecting text output instead of date
• Thinking DATE returns an error for normal inputs

2. Which of these is the correct syntax to create a date for December 25, 2023 in Excel?

easy

A. =DATE(2023, 25, 12)

B. =DATE(2023, 12, 25)

C. =DATE(12, 25, 2023)

D. =DATE(25, 12, 2023)

Solution

1. Step 1: Recall DATE function parameter order

   DATE requires year, then month, then day in that order.

2. Step 2: Match parameters to December 25, 2023

   Year = 2023, month = 12 (December), day = 25, so syntax is DATE(2023, 12, 25).

3. Final Answer:

   =DATE(2023, 12, 25) -> Option B

4. Quick Check:

   Correct parameter order = =DATE(2023, 12, 25) [OK]

Hint: DATE is always DATE(year, month, day) [OK]

Common Mistakes:

• Swapping month and day positions
• Using day as month or vice versa
• Putting year last

3. What is the result of =DATE(2024, 14, 5) in Excel?

medium

A. December 5, 2024

B. Error because month 14 is invalid

C. February 5, 2025

D. January 5, 2024

Solution

1. Step 1: Understand how DATE handles months > 12

   Excel adds extra months to the year. Month 14 means 12 months + 2 months, so it moves 1 year ahead plus 2 months.

2. Step 2: Calculate the adjusted date

   Starting from January 2024, adding 14 months moves to February 2025. Day remains 5.

3. Final Answer:

   February 5, 2025 -> Option C

4. Quick Check:

   DATE(2024,14,5) = Feb 5, 2025 [OK]

Hint: Months >12 add to year automatically [OK]

Common Mistakes:

• Expecting an error for month > 12
• Not adding extra months to year
• Confusing month and day

4. You entered =DATE(2023, 2, 30) but Excel shows March 2, 2023. Why?

medium

A. Excel treats day 30 in February as March 2 automatically

B. Formula syntax is wrong, so Excel guesses the date

C. February always has 30 days in Excel

D. Excel shows an error, not March 2

Solution

1. Step 1: Understand how DATE handles invalid days

   If the day number is too large for the month, Excel adds the extra days to the next month.

2. Step 2: Calculate the adjusted date for February 30

   February 2023 has 28 days, so day 30 is 2 days after Feb 28, which is March 2, 2023.

3. Final Answer:

   Excel treats day 30 in February as March 2 automatically -> Option A

4. Quick Check:

   DATE(2023,2,30) = Mar 2, 2023 [OK]

Hint: DATE auto-adjusts days beyond month length [OK]

Common Mistakes:

• Expecting error for invalid day
• Thinking February has 30 days
• Assuming wrong formula syntax

5. You want to calculate the date 45 days after January 20, 2024 by adding to the day parameter inside DATE. Which formula correctly does this?

hard

A. =DATE(2024, 1, 20 + 45)

B. =DATE(2024, 1 + 45, 20)

C. =DATE(2024, 1, 20) + 45

D. =DATE(2024, 1, 20) - 45

Solution

1. Step 1: Understand how DATE handles day overflow

   Adding 45 to the day parameter in DATE will automatically adjust the month and year as needed.

2. Step 2: Check each option

   =DATE(2024, 1, 20 + 45) adds 45 to day inside DATE, which works. =DATE(2024, 1 + 45, 20) adds 45 to month, which is incorrect. =DATE(2024, 1, 20) + 45 adds 45 to a date serial number, which works but is not using DATE construction. =DATE(2024, 1, 20) - 45 subtracts 45 days, which is wrong.

3. Final Answer:

   =DATE(2024, 1, 20 + 45) -> Option A

4. Quick Check:

   DATE(2024,1,65) = Mar 5, 2024 [OK]

Hint: Add days inside DATE day parameter to auto-adjust [OK]

Common Mistakes:

• Adding days to month instead of day
• Adding days outside DATE function
• Subtracting days instead of adding