Excel PracticeMOD practice
MOD answers whether something divides evenly, which is how you spot every second row or a value landing on a boundary.
What this lesson covers
A remainder of 0 means it divides evenly. That is how MOD checks for even rows or exact batches.
3 exercises in this lesson
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Task 1 · cell E10
Find what remains when C2 is divided by 5.
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Task 2 · cell E10
Find what remains when C4 is divided by 2.
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Task 3 · cell E10
Find what remains when C6 is divided by 2.
Using MOD at work
The syntax is MOD(number, divisor). Once it is in your hands, the work it replaces is the kind of thing that used to mean scrolling a column and hoping you did not miss a row.
This is lesson 33 of 37. It takes a few minutes, and the exercises are marked the moment you submit rather than at the end.
Where people usually slip
- Ranges drift. Pointing at three cells when the data has six is the single most common cause of a wrong total, and it is invisible because the answer still looks plausible.
- Copying breaks a reference. Relative references shift when a formula is copied. If a value should stay put, lock it with dollar signs.
- The number is right, the method is not. Typing a total by hand produces the right answer once. A formula produces it again when the data changes, which is the actual skill.
How this is marked
Each exercise is checked against the result the formula should produce, and then re-run on a different set of numbers. A hardcoded answer passes the first check and fails the second, so it is rejected. That second pass is the part that makes the practice stick.