Why formulas automate calculations in Google Sheets - Formula Trace Breakdown

Sample Data

This data shows three numbers in cells A1 to A3. Cell B1 contains a formula that adds these three numbers.

Cell	Value
A1	5
A2	10
A3	15
B1	=A1+A2+A3

Formula Trace

=A1+A2+A3

Step 1: A1

Step 2: A2

Step 3: A3

Step 4: 5 + 10 + 15

Cell Reference Map

    A    B
1 | 5 |  =A1+A2+A3 |
2 |10 |           |
3 |15 |           |

Cells A1, A2, and A3 provide the numbers that the formula in B1 adds together.

Result

    A    B
1 | 5 |   30   |
2 |10 |        |
3 |15 |        |

The formula in B1 automatically calculates the sum of A1, A2, and A3, showing 30.

Sheet Trace Quiz - 3 Questions

What does the formula in B1 do?

A Multiplies the values in A1, A2, and A3

B Subtracts A3 from A1 and A2

C Adds the values in A1, A2, and A3

D Divides A1 by A2 and A3

Key Result

Formulas use cell references to perform calculations automatically when input values change.