Approximate vs exact match in Google Sheets - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the formula to perform an exact match using VLOOKUP.

Google Sheets

=VLOOKUP(A2, B2:C10, 2, [1])

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

AFALSE

BTRUE

C1

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using TRUE instead of FALSE causes approximate match.

Omitting the last argument defaults to approximate match.

Using FALSE in VLOOKUP forces an exact match.

2fill in blank

medium

Complete the formula to perform an approximate match using VLOOKUP.

Google Sheets

=VLOOKUP(A2, B2:C10, 2, [1])

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

AFALSE

B1

CTRUE

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using FALSE causes exact match instead of approximate.

Using 0 or FALSE disables approximate match.

Using TRUE in VLOOKUP enables approximate match.

3fill in blank

hard

Fix the error in the formula to ensure exact match with VLOOKUP.

Google Sheets

=VLOOKUP(A2, B2:C10, 2, [1])

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

AFALSE

BTRUE

C2

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using TRUE causes unexpected approximate matches.

Using numbers other than 0 or 1 causes errors.

The last argument must be FALSE for exact match; TRUE causes approximate match.

4fill in blank

hard

Fill both blanks to create a formula that returns an exact match or "Not found" if no match exists.

Google Sheets

=IFERROR(VLOOKUP(A2, B2:C10, [1], [2]), "Not found")

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

A2

BFALSE

CTRUE

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using TRUE causes approximate match and unexpected results.

Using wrong column index returns wrong data.

Column 2 is the return column, and FALSE ensures exact match. IFERROR handles missing values.

5fill in blank

hard

Fill both blanks to create a formula that performs an approximate match and returns the value from the third column.

Google Sheets

=VLOOKUP(A2, B2:D10, [1], [2])

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

A3

BTRUE

CFALSE

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Using FALSE causes exact match instead of approximate.

Using wrong column index returns wrong data.

Column index 3 returns the value from the third column, TRUE enables approximate match.

Practice

1. What does the FALSE parameter in the VLOOKUP function specify?

easy

A. It sorts the data before searching.

B. It tells VLOOKUP to find an approximate match.

C. It tells VLOOKUP to find an exact match.

D. It ignores errors in the lookup.

Solution

1. Step 1: Understand the role of the last parameter in VLOOKUP

   The last parameter in VLOOKUP is the range_lookup argument, which controls match type.

2. Step 2: Interpret FALSE in range_lookup

   FALSE means VLOOKUP looks for an exact match only, no close values.

3. Final Answer:

   It tells VLOOKUP to find an exact match. -> Option C

4. Quick Check:

   FALSE = exact match [OK]

Hint: FALSE means exact match; TRUE or omit means approximate [OK]

Common Mistakes:

• Confusing FALSE with approximate match
• Thinking FALSE sorts data
• Assuming FALSE ignores errors

2. Which of these is the correct syntax for an exact match VLOOKUP in Google Sheets?

easy

A. =VLOOKUP(A2, B2:D10, 2, TRUE)

B. =VLOOKUP(A2, B2:D10, 2, FALSE)

C. =VLOOKUP(A2, B2:D10, 2)

D. =VLOOKUP(A2, B2:D10, 2, 1)

Solution

1. Step 1: Recall the exact match parameter for VLOOKUP

   Exact match requires the fourth argument to be FALSE.

2. Step 2: Check each option

   =VLOOKUP(A2, B2:D10, 2) omits the fourth argument (defaults to TRUE, approximate). =VLOOKUP(A2, B2:D10, 2, TRUE) uses TRUE (approximate). =VLOOKUP(A2, B2:D10, 2, FALSE) uses FALSE (correct exact match). =VLOOKUP(A2, B2:D10, 2, 1) uses 1 which is approximate match.

3. Final Answer:

   =VLOOKUP(A2, B2:D10, 2, FALSE) -> Option B

4. Quick Check:

   FALSE means exact match [OK]

Hint: Use FALSE as 4th argument for exact match VLOOKUP [OK]

Common Mistakes:

• Omitting the 4th argument for exact match
• Using TRUE instead of FALSE for exact match
• Using 1 instead of FALSE in Google Sheets

3. Given this sorted data in column A: 10, 20, 30, 40, 50, what will =VLOOKUP(25, A1:A5, 1, TRUE) return?

medium

A. Error

B. 25

C. 30

D. 20

Solution

1. Step 1: Understand approximate match behavior

   With TRUE (approximate), VLOOKUP finds the largest value less than or equal to the lookup value.

2. Step 2: Find largest value ≤ 25 in the list

   Values are 10, 20, 30, 40, 50. The largest value ≤ 25 is 20.

3. Final Answer:

   20 -> Option D

4. Quick Check:

   Approximate match returns closest lower value [OK]

Hint: Approximate match returns closest smaller or equal value [OK]

Common Mistakes:

• Expecting exact 25 to be found
• Choosing next higher value 30
• Thinking TRUE means exact match

4. You used =VLOOKUP(15, A1:B5, 2, TRUE) but got wrong results. The data in column A is unsorted. What is the fix?

medium

A. Sort column A ascending or use FALSE for exact match.

B. Change TRUE to 1 in the formula.

C. Remove the 4th argument entirely.

D. Use HLOOKUP instead.

Solution

1. Step 1: Identify problem with approximate match on unsorted data

   Approximate match (TRUE) requires sorted data; unsorted data causes wrong results.

2. Step 2: Fix by sorting data or using exact match

   Either sort column A ascending or use FALSE for exact match to avoid errors.

3. Final Answer:

   Sort column A ascending or use FALSE for exact match. -> Option A

4. Quick Check:

   Approximate match needs sorted data [OK]

Hint: Approximate match needs sorted data or use FALSE for exact [OK]

Common Mistakes:

• Using 1 instead of FALSE (still approximate)
• Removing 4th argument causes approximate match on unsorted data
• Switching to HLOOKUP without reason

5. You have a price table sorted by quantity: 1= $10, 5= $8, 10= $6. Which formula finds the correct price for quantity in A2 using approximate match?

hard

A. =VLOOKUP(A2, A1:B3, 2, TRUE)

B. =VLOOKUP(A2, {1,10,5,8,10,6}, 2, TRUE)

C. =VLOOKUP(A2, A1:B3, 2, FALSE)

D. =VLOOKUP(A2, A1:B3, 2)

Solution

1. Step 1: Recognize approximate match use case

   Price depends on quantity ranges, so approximate match (TRUE) finds closest lower quantity price.

2. Step 2: Check data sorting and formula correctness

   Data in A1:B3 is sorted by quantity ascending. Using TRUE for approximate match is correct. =VLOOKUP(A2, A1:B3, 2, TRUE) matches this.

3. Final Answer:

   =VLOOKUP(A2, A1:B3, 2, TRUE) -> Option A

4. Quick Check:

   Approximate match with sorted data finds correct price [OK]

Hint: Use TRUE with sorted data for range pricing lookups [OK]

Common Mistakes:

• Using FALSE causes no approximate match
• Incorrect array syntax in option A
• Omitting 4th argument defaults to TRUE but less clear