Use spreadsheet functions (SUM, IF, VLOOKUP, COUNTIF)
📊 8 Spreadsheets – Mastering Key Functions
🔢 SUM – Adding Numbers Quickly
Think of SUM like adding up all the candies in a jar. Instead of counting each candy one by one, SUM does it instantly.
Formula example: =SUM(A1:A10) adds the values from cell A1 to A10.
| Cell | Value |
|---|---|
| A1 | 5 |
| A2 | 7 |
| A3 | 3 |
| Result | =SUM(A1:A3) = 15 |
SUM can also handle non-contiguous ranges, e.g., =SUM(A1, A3, A5).
?? IF – Making Decisions in Cells
The IF function is like a traffic light: green means go, red means stop. It checks a condition and returns one value if true, another if false.
Formula example: =IF(B2>=60, "Pass", "Fail") checks if a score in B2 is 60 or more.
- Write the condition:
B2>=60 - Specify the value if true:
"Pass" - Specify the value if false:
"Fail"
IF with other functions, e.g., =IF(SUM(A1:A5)>100, "High", "Low").
🔎 VLOOKUP – Finding Data Fast
Imagine a phone book where you search a name and get the number. VLOOKUP does the same in a spreadsheet.
Formula example: =VLOOKUP("Apple", A2:B5, 2, FALSE) looks for "Apple" in column A and returns the value from column B.
| Fruit | Price |
|---|---|
| Apple | $0.50 |
| Banana | $0.30 |
| Cherry | $0.20 |
FALSE for exact matches, unless you need approximate sorting.
📈 COUNTIF – Counting with Conditions
Counting how many times a word appears in a list is like counting how many times a song plays on the radio. COUNTIF does this automatically.
Formula example: =COUNTIF(C1:C10, "Red") counts how many cells in C1:C10 contain the word "Red".
- Define the range:
C1:C10 - Set the condition:
"Red"
COUNTIF with wildcards: =COUNTIF(A1:A10, "*apple*") counts any cell containing "apple".
📚 Quick Review & Practice
- SUM – Add numbers in a range.
- IF – Return values based on a condition.
- VLOOKUP – Search a value in the first column and return a related value.
- COUNTIF – Count cells that meet a specific criterion.
Try creating a mini‑budget sheet: list expenses, use SUM to total them, IF to flag overspending, VLOOKUP to find item prices, and COUNTIF to count how many items are in each category.
Revision
Log in to practice.