Real situations from working spreadsheets — sales targets, commission tiers, messy exports, aged invoices. Numbered in recommended order: start at 1 and work down, or filter to what you need.
5 exercises — Intermediate · for Operations
Work out how many days old each invoice is.
TODAY
Extract characters from the middle of a text value.
MID
Clean inconsistent spacing and casing so values can be matched.
Require two conditions to be true at once.
IF · AND
Count rows that satisfy several criteria at once.
COUNTIFS
| # | Exercise | Functions | Difficulty | Time | Status |
|---|---|---|---|---|---|
| 13 | Calculate invoice age with TODAYHarbor Supply — open invoices | TODAY | Intermediate | 8 min | 25 pts |
| 15 | Pull the year out of an order code with MIDHarbor Supply — order codes | MID | Intermediate | 7 min | 25 pts |
| 16 | Standardise messy codes with TRIM and UPPERHarbor Supply — supplier feed, uncleaned | — | Intermediate | 7 min | 25 pts |
| 17 | Approve orders with ANDHarbor Supply — order approval queue | IF · AND | Intermediate | 8 min | 25 pts |
| 19 | Count orders meeting two conditionsHarbor Supply — orders across regions | COUNTIFS | Intermediate | 8 min | 25 pts |