INDEX and MATCH combination in Google Sheets - Cell-by-Cell Formula Trace

Sample Data

This table lists names in column A and their scores in column B. Cell D2 contains a name to look up, and we want to find the corresponding score using INDEX and MATCH.

Cell	Value
A1	Name
B1	Score
A2	Alice
B2	85
A3	Bob
B3	92
A4	Charlie
B4	78
A5	Diana
B5	90
D1	Lookup Name
D2	Bob
E1	Score Found

Formula Trace

=INDEX(B2:B5, MATCH(D2, A2:A5, 0))

Step 1: MATCH(D2, A2:A5, 0)

Step 2: INDEX(B2:B5, 2)

Step 3: =INDEX(B2:B5, MATCH(D2, A2:A5, 0))

Cell Reference Map

    A       B       C       D       E
1 | Name  | Score |       | Lookup | Score
  |       |       |       | Name   | Found
2 | Alice | 85    |       | Bob    | 
3 | Bob   | 92    |       |        | 
4 | Charlie| 78   |       |        | 
5 | Diana | 90    |       |        | 

Arrows:
D2 --> MATCH lookup in A2:A5
MATCH result --> INDEX row number in B2:B5

The formula uses D2 as the lookup value to find its position in A2:A5 with MATCH. The position number is then used by INDEX to get the corresponding score from B2:B5.

Result

    A       B       C       D       E
1 | Name  | Score |       | Lookup | Score
  |       |       |       | Name   | Found
2 | Alice | 85    |       | Bob    | 92
3 | Bob   | 92    |       |        | 
4 | Charlie| 78   |       |        | 
5 | Diana | 90    |       |        | 

The formula in E2 shows 92, which is the score for 'Bob' found by the INDEX and MATCH combination.

Sheet Trace Quiz - 3 Questions

What does the MATCH function return in this formula?

A The position of 'Bob' in A2:A5

B The score of 'Bob'

C The value in D2

D The range B2:B5

Key Result

INDEX(range_to_return_value_from, MATCH(lookup_value, lookup_range, 0)) finds the position of lookup_value and returns corresponding value from another range.

Practice

1. What does the INDEX function do in Google Sheets when combined with MATCH?

easy

A. Deletes duplicate values from a range

B. Finds the position of a value in a range

C. Sorts the data in ascending order

D. Returns the value at a specific position in a range

Solution

1. Step 1: Understand the role of INDEX

   The INDEX function returns the value located at a specific row and column in a given range.

2. Step 2: Understand the role of MATCH

   The MATCH function finds the position (row or column number) of a specific value within a range.

3. Final Answer:

   Returns the value at a specific position in a range -> Option D

4. Quick Check:

   INDEX returns value, MATCH finds position [OK]

Hint: INDEX gives value; MATCH gives position [OK]

Common Mistakes:

• Confusing INDEX with MATCH roles
• Thinking INDEX sorts data
• Assuming MATCH returns values

2. Which of the following is the correct syntax to use INDEX and MATCH together to find a value in column B based on a lookup value in column A?

easy

A. =INDEX(A1:A10, MATCH(B1:B10, "Apple", 0))

B. =MATCH(B1:B10, INDEX("Apple", A1:A10, 0))

C. =INDEX(B1:B10, MATCH("Apple", A1:A10, 0))

D. =MATCH("Apple", B1:B10, INDEX(A1:A10, 0))

Solution

1. Step 1: Check INDEX syntax

   INDEX(range, row_number) returns value at row_number in range.

2. Step 2: Check MATCH syntax

   MATCH(lookup_value, lookup_range, 0) finds exact position of lookup_value in lookup_range.

3. Step 3: Combine correctly

   Use MATCH to find row in A1:A10, then INDEX to get value from B1:B10 at that row.

4. Final Answer:

   =INDEX(B1:B10, MATCH("Apple", A1:A10, 0)) -> Option C

5. Quick Check:

   INDEX(B, MATCH(value, A)) correct syntax [OK]

Hint: MATCH finds row, INDEX returns value at that row [OK]

Common Mistakes:

• Swapping INDEX and MATCH arguments
• Using MATCH on wrong range
• Incorrect order of parameters

3. Given the data:
A1:A4 = {"Cat", "Dog", "Bird", "Fish"}
B1:B4 = {5, 3, 8, 2}
What is the result of =INDEX(B1:B4, MATCH("Bird", A1:A4, 0))?

medium

A. 3

B. 8

C. 2

D. 5

Solution

1. Step 1: Find position of "Bird" in A1:A4 using MATCH

   "Bird" is at position 3 in A1:A4.

2. Step 2: Use INDEX to get value at position 3 in B1:B4

   Value at B3 is 8.

3. Final Answer:

   8 -> Option B

4. Quick Check:

   INDEX(B, MATCH("Bird", A)) = 8 [OK]

Hint: MATCH finds row 3, INDEX returns B3 = 8 [OK]

Common Mistakes:

• Confusing row numbers
• Using wrong ranges
• Assuming MATCH returns value

4. You wrote the formula =INDEX(B1:B5, MATCH("Orange", A1:A5, 0)) but it returns an error. What is the most likely cause?

medium

A. The value "Orange" is not found in A1:A5

B. The ranges B1:B5 and A1:A5 have different sizes

C. INDEX cannot be combined with MATCH

D. MATCH requires a third argument of 1 or -1

Solution

1. Step 1: Understand MATCH error

   MATCH returns #N/A error if lookup value is not found in the range.

2. Step 2: Check if "Orange" exists in A1:A5

   If "Orange" is missing, MATCH fails and INDEX cannot get a valid row.

3. Final Answer:

   The value "Orange" is not found in A1:A5 -> Option A

4. Quick Check:

   MATCH missing value causes error [OK]

Hint: Check if lookup value exists before using MATCH [OK]

Common Mistakes:

• Assuming INDEX and MATCH can't combine
• Ignoring #N/A from MATCH
• Wrong MATCH match_type argument

5. You have a table with names in A2:A10 and scores in B2:B10. You want to find the score of the name in D2, but if the name is not found, return "Not Found" instead of an error. Which formula correctly does this?

hard

A. =IFERROR(INDEX(B2:B10, MATCH(D2, A2:A10, 0)), "Not Found")

B. =INDEX(B2:B10, MATCH(D2, A2:A10, 0)) & "Not Found"

C. =IF(ISERROR(MATCH(D2, A2:A10, 0)), "Not Found", INDEX(B2:B10, D2))

D. =MATCH(D2, A2:A10, 0) & INDEX(B2:B10, D2)

Solution

1. Step 1: Use MATCH to find position of D2 in A2:A10

   MATCH(D2, A2:A10, 0) finds exact row of the name.

2. Step 2: Use INDEX to get score from B2:B10 at that position

   INDEX(B2:B10, MATCH(...)) returns the score.

3. Step 3: Use IFERROR to catch errors if name not found

   IFERROR(..., "Not Found") returns "Not Found" instead of error.

4. Final Answer:

   =IFERROR(INDEX(B2:B10, MATCH(D2, A2:A10, 0)), "Not Found") -> Option A

5. Quick Check:

   IFERROR wraps INDEX-MATCH to handle missing names [OK]

Hint: Wrap INDEX-MATCH with IFERROR for safe lookup [OK]

Common Mistakes:

• Concatenating strings instead of handling errors
• Using ISERROR with repeated MATCH calls
• Incorrect argument order in MATCH