SUM function in Google Sheets - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the formula to add the numbers in cells A1 to A5.

Google Sheets

=SUM([1])

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

AA1:A5

BA1+A5

CA1-A5

DA1*A5

Attempts:

3 left

💡 Hint

Common Mistakes

Using plus signs instead of a range inside SUM.

Using subtraction or multiplication instead of addition.

The SUM function adds all numbers in the range A1:A5.

2fill in blank

medium

Complete the formula to sum the values in cells B2, B3, and B4.

Google Sheets

=SUM([1])

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

AB2,B3,B4

BB2-B4

CB2*B4

DB2+B3+B4

Attempts:

3 left

💡 Hint

Common Mistakes

Using plus signs inside SUM instead of commas.

Using a range with a dash which is invalid.

The SUM function can add individual cells separated by commas, like B2,B3,B4.

3fill in blank

hard

Fix the error in the formula to sum cells C1 to C3.

Google Sheets

=SUM(C1[1]C3)

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

A+

B:

C,

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using a dash or plus sign instead of a colon for ranges.

Using commas which list cells but do not create a range.

The correct way to specify a range is with a colon :, so C1:C3 sums cells C1 through C3.

4fill in blank

hard

Fill both blanks to sum cells D1 to D4 and cell D6.

Google Sheets

=SUM([1], [2])

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

AD1:D4

BD1-D4

CD6

DD6:D7

Attempts:

3 left

💡 Hint

Common Mistakes

Using a dash instead of a colon for ranges.

Including extra cells not asked for.

Use D1:D4 to sum the range from D1 to D4, and D6 to add the single cell D6.

5fill in blank

hard

Fill all three blanks to sum cells E1 to E3, cell E5, and cell E7.

Google Sheets

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

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

AE1-E3

BE5

CE7

DE1:E3

Attempts:

3 left

💡 Hint

Common Mistakes

Using dashes instead of colons for ranges.

Forgetting commas between arguments.

Use E1:E3 for the range, and E5 and E7 for the individual cells to sum all together.

Practice

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

easy

A. Adds all numbers in the given cells or ranges.

B. Counts how many numbers are in the cells.

C. Finds the average of the numbers in the cells.

D. Multiplies all numbers in the given cells.

Solution

1. Step 1: Understand the purpose of SUM

   The SUM function is designed to add numbers together from cells or ranges.

2. Step 2: Compare with other functions

   Counting, averaging, or multiplying are done by other functions like COUNT, AVERAGE, or PRODUCT.

3. Final Answer:

   Adds all numbers in the given cells or ranges. -> Option A

4. Quick Check:

   SUM adds numbers = Adds all numbers [OK]

Hint: SUM always adds numbers, not counts or averages [OK]

Common Mistakes:

• Thinking SUM counts cells instead of adding
• Confusing SUM with AVERAGE
• Assuming SUM multiplies numbers

2. Which of these is the correct way to write a SUM formula to add cells A1 to A5?

easy

A. =SUM(A1:A5)

B. =SUM(A1-A5)

C. =SUM(A1,A5)

D. =SUM(A1+A5)

Solution

1. Step 1: Identify correct range syntax

   In Google Sheets, a range is written with a colon, like A1:A5, to include all cells from A1 to A5.

2. Step 2: Check each option

   =SUM(A1:A5) uses colon correctly. =SUM(A1-A5) uses a minus sign which is invalid for ranges. =SUM(A1,A5) sums only two cells, not the range. =SUM(A1+A5) adds two cells directly, not a range.

3. Final Answer:

   =SUM(A1:A5) -> Option A

4. Quick Check:

   Range uses colon = =SUM(A1:A5) [OK]

Hint: Use colon (:) to specify ranges in SUM [OK]

Common Mistakes:

• Using minus (-) instead of colon (:) for ranges
• Listing cells with comma when range is needed
• Adding cells with plus (+) inside SUM

3. Given the following values in cells:
A1=3, A2=5, A3=empty, A4=7, A5="text"
What is the result of =SUM(A1:A5)?

medium

A. 0

B. 15

C. text

D. Error

Solution

1. Step 1: Identify numeric values in range

   Cells A1=3, A2=5, A4=7 are numbers. A3 is empty and A5 contains text.

2. Step 2: Understand SUM behavior with empty and text

   SUM ignores empty cells and text, so only 3 + 5 + 7 = 15 is added.

3. Final Answer:

   15 -> Option B

4. Quick Check:

   SUM ignores text and empty = 15 [OK]

Hint: SUM skips empty cells and text automatically [OK]

Common Mistakes:

• Including text as zero or error
• Counting empty cells as zero explicitly
• Expecting error due to text in range

4. You wrote the formula =SUM(A1;A2;A3) but it shows an error. What is the problem?

medium

A. The formula needs an equal sign (=) at the end.

B. SUM cannot take more than two arguments.

C. Cells A1, A2, A3 must be numbers for SUM to work.

D. Semicolons (;) are not valid separators in Google Sheets formulas.

Solution

1. Step 1: Check argument separators in formulas

   Google Sheets uses commas (,) to separate arguments, not semicolons (;).

2. Step 2: Validate formula syntax

   Using semicolons causes a syntax error. The correct formula is =SUM(A1,A2,A3).

3. Final Answer:

   Semicolons (;) are not valid separators in Google Sheets formulas. -> Option D

4. Quick Check:

   Use commas, not semicolons, in formulas [OK]

Hint: Use commas (,) to separate arguments in SUM [OK]

Common Mistakes:

• Using semicolons instead of commas
• Thinking SUM limits number of arguments
• Forgetting equal sign at start

5. You have sales data in cells B2:B10 and expenses in C2:C10. You want to find the net total (sales minus expenses). Which formula correctly uses SUM to do this?

hard

A. =SUM(B2:B10, -C2:C10)

B. =SUM(B2:B10 - C2:C10)

C. =SUM(B2:B10) - SUM(C2:C10)

D. =SUM(B2:B10 + C2:C10)

Solution

1. Step 1: Understand separate sums for sales and expenses

   We must sum sales and expenses separately to get total sales and total expenses.

2. Step 2: Subtract total expenses from total sales

   Subtract the sum of expenses from the sum of sales: =SUM(B2:B10) - SUM(C2:C10).

3. Step 3: Check incorrect options

   =SUM(B2:B10 - C2:C10) tries to subtract ranges inside SUM, which is invalid. =SUM(B2:B10, -C2:C10) uses a negative range inside SUM, which is invalid. =SUM(B2:B10 + C2:C10) adds sales and expenses, not subtracts.

4. Final Answer:

   =SUM(B2:B10) - SUM(C2:C10) -> Option C

5. Quick Check:

   Sum separately then subtract = correct net total [OK]

Hint: Sum ranges separately, then subtract for net total [OK]

Common Mistakes:

• Trying to subtract ranges inside one SUM
• Using plus instead of minus for net
• Passing negative ranges inside SUM