IFS function in Google Sheets - Cell-by-Cell Formula Trace

Sample Data

This table shows student scores in column A. We want to assign letter grades in column B using the IFS function.

Cell	Value
A1	Score
A2	85
A3	72
A4	59
A5	40
B1	Grade

Formula Trace

=IFS(A2>=90, "A", A2>=80, "B", A2>=70, "C", A2>=60, "D", TRUE, "F")

Step 1: A2>=90

Step 2: 85>=90

Step 3: A2>=80

Step 4: 85>=80

Step 5: "B"

Cell Reference Map

    A      B
1 |Score |Grade
2 |  85  | --> formula here
3 |  72  |
4 |  59  |
5 |  40  |

The formula in B2 references cell A2 to check the score and assign a grade.

Result

    A      B
1 |Score |Grade
2 |  85  |  B
3 |  72  | 
4 |  59  | 
5 |  40  |

The formula in B2 evaluates the score 85 and assigns grade B.

Sheet Trace Quiz - 3 Questions

What grade will the formula assign if the score is 72?

A B

B C

C D

D F

Key Result

IFS checks conditions in order and returns the value for the first true condition.

Practice

1. What does the IFS function do in Google Sheets?

easy

A. Sorts data alphabetically.

B. Checks multiple conditions and returns the value for the first true condition.

C. Adds numbers in a range.

D. Counts the number of cells with numbers.

Solution

1. Step 1: Understand the purpose of IFS

   The IFS function evaluates multiple conditions one by one.

2. Step 2: Identify what IFS returns

   It returns the value corresponding to the first condition that is true.

3. Final Answer:

   Checks multiple conditions and returns the value for the first true condition. -> Option B

4. Quick Check:

   IFS returns first true condition's value [OK]

Hint: Remember: IFS stops at first true condition [OK]

Common Mistakes:

• Thinking IFS sums values
• Confusing IFS with sorting or counting
• Assuming IFS returns all true values

2. Which of the following is the correct syntax for the IFS function in Google Sheets?

easy

A. IFS(condition1: value1, condition2: value2)

B. IFS(value1, condition1, value2, condition2)

C. IFS(condition1; value1; condition2; value2)

D. IFS(condition1, value1, condition2, value2, ..., TRUE, default_value)

Solution

1. Step 1: Recall IFS syntax format

   IFS requires pairs of conditions and values separated by commas.

2. Step 2: Identify correct option

   IFS(condition1, value1, condition2, value2, ..., TRUE, default_value) correctly shows pairs and includes a default TRUE condition.

3. Final Answer:

   IFS(condition1, value1, condition2, value2, ..., TRUE, default_value) -> Option D

4. Quick Check:

   IFS syntax uses condition-value pairs separated by commas [OK]

Hint: Pairs of condition and value, separated by commas [OK]

Common Mistakes:

• Using semicolons instead of commas
• Swapping condition and value order
• Using colons instead of commas

3. Given the formula =IFS(A1>90, "A", A1>80, "B", A1>70, "C", TRUE, "F") and cell A1 contains 85, what will be the result?

medium

A. "B"

B. "F"

C. "C"

D. "A"

Solution

1. Step 1: Evaluate conditions in order

   Check if A1>90: 85>90 is false, move to next.

2. Step 2: Check second condition

   Check if A1>80: 85>80 is true, so return "B".

3. Final Answer:

   "B" -> Option A

4. Quick Check:

   First true condition returns "B" [OK]

Hint: Check conditions top to bottom, stop at first true [OK]

Common Mistakes:

• Choosing the highest grade instead of first true
• Ignoring order of conditions
• Forgetting TRUE default case

4. Identify the error in this formula: =IFS(A1>50, "Pass", A1<50, "Fail")

medium

A. Conditions are reversed; should be A1<50 first.

B. Quotes around text values are incorrect.

C. Missing default TRUE condition for unmatched cases.

D. IFS cannot compare numbers.

Solution

1. Step 1: Analyze conditions coverage

   Conditions check if A1>50 or A1<50 but miss A1=50 case.

2. Step 2: Identify missing default case

   Without a TRUE default, formula returns #N/A if no condition matches.

3. Final Answer:

   Missing default TRUE condition for unmatched cases. -> Option C

4. Quick Check:

   Always add TRUE default to handle all cases [OK]

Hint: Add TRUE default condition to avoid errors [OK]

Common Mistakes:

• Not including a TRUE default condition
• Assuming all cases covered without equality
• Misunderstanding error messages

5. You want to assign a category based on sales in cell B2: "High" if sales > 1000, "Medium" if sales between 500 and 1000, "Low" if sales between 100 and 499, and "None" if sales below 100. Which IFS formula is correct?

hard

A. =IFS(B2>1000, "High", B2>=500, "Medium", B2>=100, "Low", TRUE, "None")

B. =IFS(B2>1000, "High", B2>500, "Medium", B2>100, "Low", TRUE, "None")

C. =IFS(B2>=1000, "High", B2>=500, "Medium", B2>=100, "Low", TRUE, "None")

D. =IFS(B2>1000, "High", B2>499, "Medium", B2>99, "Low", TRUE, "None")

Solution

1. Step 1: Check condition ranges carefully

   High is sales > 1000, Medium is sales between 500 and 1000 inclusive, Low is 100 to 499 inclusive.

2. Step 2: Verify conditions order and boundaries

   =IFS(B2>1000, "High", B2>=500, "Medium", B2>=100, "Low", TRUE, "None") correctly uses >1000, then >=500, then >=100, and finally TRUE for below 100.

3. Final Answer:

   =IFS(B2>1000, "High", B2>=500, "Medium", B2>=100, "Low", TRUE, "None") -> Option A

4. Quick Check:

   Use >= for inclusive ranges and TRUE for default [OK]

Hint: Use >= for lower bounds and TRUE for default catch-all [OK]

Common Mistakes:

• Using > instead of >= causing gaps
• Wrong order of conditions
• Missing TRUE default condition