Arithmetic operators in formulas in Excel - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the formula to add the values in cells A1 and B1.

Excel

=A1 [1] B1

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

A-

B+

C*

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using * or / instead of +

Forgetting the equal sign at the start

The plus sign (+) adds two numbers or cell values in Excel formulas.

2fill in blank

medium

Complete the formula to multiply the values in cells C2 and D2.

Excel

=C2 [1] D2

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

A*

B+

C-

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using + or - instead of *

Using x instead of *

The asterisk (*) is used to multiply numbers or cell values in Excel formulas.

3fill in blank

hard

Fix the error in the formula to subtract B3 from A3.

Excel

=A3 [1] B3

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

A+

B*

C-

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using + instead of -

Using * or / by mistake

The minus sign (-) subtracts one number or cell value from another in Excel formulas.

4fill in blank

hard

Fill both blanks to create a formula that divides the value in E4 by the value in F4 and then adds 10.

Excel

=E4 [1] F4 [2] 10

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

A/

B+

C-

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the order of operators

Using * instead of / for division

Division uses the slash (/), and addition uses the plus sign (+) in Excel formulas.

5fill in blank

hard

Fill all three blanks to create a formula that multiplies A5 by 2, subtracts B5, and then divides the result by 3.

Excel

=((A5 [1] 2) [2] B5) [3] 3

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

A*

B-

C/

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the order of operations

Using + instead of - for subtraction

Use * to multiply, - to subtract, and / to divide in Excel formulas.

Practice

1. Which arithmetic operator in Excel is used for multiplication in a formula like =A1 * B1?

easy

A. + (plus)

B. * (asterisk)

C. - (minus)

D. / (slash)

Solution

1. Step 1: Identify the multiplication operator

   In Excel formulas, the asterisk (*) is used to multiply values.

2. Step 2: Confirm the operator in the example

   The formula =A1 * B1 uses the asterisk to multiply the values in cells A1 and B1.

3. Final Answer:

   * (asterisk) -> Option B

4. Quick Check:

   Multiplication = * [OK]

Hint: Remember * means multiply in Excel formulas [OK]

Common Mistakes:

• Confusing * with + for addition
• Using x instead of *
• Using / for multiplication

2. Which of the following is the correct formula to add values in cells A1 and B1 in Excel?

easy

A. =A1 + B1

B. =A1 - B1

C. =A1 * B1

D. =A1 / B1

Solution

1. Step 1: Identify the addition operator

   The plus sign (+) is used to add numbers in Excel formulas.

2. Step 2: Check the formula syntax

   The formula =A1 + B1 correctly adds the values in cells A1 and B1.

3. Final Answer:

   =A1 + B1 -> Option A

4. Quick Check:

   Addition = + [OK]

Hint: Use + to add numbers in Excel formulas [OK]

Common Mistakes:

• Using - instead of +
• Forgetting the = sign
• Using * for addition

3. What is the result of the formula =10 + 5 * 2 in Excel?

medium

A. 25

B. 30

C. 15

D. 20

Solution

1. Step 1: Apply order of operations

   Excel calculates multiplication before addition, so 5 * 2 = 10.

2. Step 2: Add the results

   Then add 10 + 10 = 20.

3. Final Answer:

   20 -> Option D

4. Quick Check:

   10 + (5 * 2) = 20 [OK]

Hint: Multiply before adding unless parentheses change order [OK]

Common Mistakes:

• Adding first then multiplying
• Ignoring operator precedence
• Confusing * with +

4. The formula =A1 + B1 * returns an error. What is the problem?

medium

A. Formula should start with a single quote

B. Using + instead of -

C. Missing value after the * operator

D. Parentheses are required around A1 and B1

Solution

1. Step 1: Check formula completeness

   The formula ends with an operator * but has no value after it, which is invalid.

2. Step 2: Understand Excel syntax rules

   Every operator must have values on both sides; missing value causes an error.

3. Final Answer:

   Missing value after the * operator -> Option C

4. Quick Check:

   Operators need values on both sides [OK]

Hint: Ensure every operator has values before and after [OK]

Common Mistakes:

• Leaving operator at end
• Forgetting to complete formula
• Adding unnecessary parentheses

5. You want to calculate the total price with tax in Excel. The price is in cell A2, and tax rate (as decimal) is in B2. Which formula correctly calculates price plus tax?

hard

A. =A2 + B2 * A2

B. =(A2 + B2) * A2

C. =A2 + B2

D. =A2 + B2 + A2

Solution

1. Step 1: Understand the calculation

   Total price with tax = price + (price x tax rate).

2. Step 2: Match formula to calculation

   Formula =A2 + B2 * A2 correctly adds price plus tax amount (B2 * A2).

3. Final Answer:

   =A2 + B2 * A2 -> Option A

4. Quick Check:

   Price + (TaxRate x Price) = Total [OK]

Hint: Multiply tax rate by price, then add price [OK]

Common Mistakes:

• Adding tax rate directly
• Multiplying sum incorrectly
• Using wrong operator order