Turn a score into a band without nesting IFs
Four thresholds, one readable formula. The nested-IF version is where bracket-counting errors come from.
The data
| Row number | A | B | C |
|---|---|---|---|
| 1 | Student | Score | Grade |
| 2 | Ava | 92 | |
| 3 | Liam | 78 | |
| 4 | Mia | 64 | |
| 5 | Ethan | 51 |
Your task
Put a formula in C2 that returns "A" for 90 and above, "B" for 80 and above, "C" for 70 and above, and "F" otherwise.
Your formula goes in C2
The checker compares your formula against the accepted answers — it does not run it. The expected result is shown with the solution so you can verify it in your own spreadsheet.
Why this is the right formula
Highest threshold first is not a style preference: IFS returns the first condition that is true, so putting >=70 before >=90 would grade every high score as a C. The trailing TRUE is the "otherwise" branch — without it, a score below 70 returns #N/A rather than "F". The nested-IF version is accepted because it works everywhere, including versions older than Excel 2019.
Try next
Free to use, share and republish — including commercially. Attribution isn't required, but it's what keeps these free to make, and there's one ready to paste below.
Questions
Does this actually run my formula?
No, and it is worth being clear about that. The checker normalises what you type — case, spaces, the semicolon-or-comma separator, dollar-sign anchors — and compares it against every formula that solves the task. The expected result is shown so you can verify it independently in your own spreadsheet.
My formula is different but correct. Will it be marked wrong?
It should not be: each exercise accepts the genuinely different approaches, not one blessed answer. If you find a correct formula that is rejected, the feedback button sends it to us with the page attached.
Do I need an account?
No. There is no signup, no progress tracking and nothing stored — everything happens in your browser.