Answer everything, then click Check: your score and explanations will appear.
1.1 · Recall
1. A cell displays «25%». What is it worth in calculations?
The Percentage format dresses 0.25; the calculations use 0.25. The format changes the display, never the value.
1.1 · Application
2. Wassim enters «12,500 DA» and =SUM(B2:B13) returns 0. What to do?
With units, the cells are non-calculable text. Plain numbers + Currency format: the SUM answers.
1.2 · Recall
3. What is the order of precedence of calculations in Excel?
Parentheses first, then ^, then × ÷, finally + −. Hence =2+3*4 = 14.
1.2 · Application
4. Price in B2, discount in C2 (0.10). Which formula applies the discount?
The parentheses compute (1-discount) before the multiplication: =B2*(1-C2). Without them, the order skews the result.
1.2 · Arbitration
5. A long formula without parentheses gives a doubtful result. What arbitration?
Parentheses guarantee the intended order and the re-reading; references keep the calculation alive.
1.3 · Recall
6. What does =COUNT(B2:B13) count?
COUNT counts numbers; COUNTA counts non-empty (numbers + text). For days sold, it's COUNT.
1.3 · Application
7. B2:B13 contains sales and an «N/A». What does =AVERAGE(B2:B13) return?
AVERAGE ignores text and blanks: sum of the numbers divided by their count.
1.3 · Application
8. Wassim wants the month's total, average, min and max. Which functions?
The four aggregation functions on the range: total, average, bounds — without manual addition.
1.4 · Application
9. Rate in E1, amounts in B2:B41. Which formula to copy down?
B2 follows each row (relative), $E$1 stays frozen (absolute). Without $, E1 drifts toward emptiness.
1.4 · Arbitration
10. Should you freeze everything (=$B$2*$E$1) «to protect» the copying?
Freezing everything blocks useful copying: each row would recompute B2. Constant frozen, data free.
1.5 · Application
11. You enter 1 only, you drag the handle. Result?
A single value = copy as is. For a series, enter two values (1 and 2) so Excel deduces the step.
1.5 · Arbitration
12. Wassim must sort a Name/Amount table by amount. Which gesture?
Sorting a single column disconnects the rows. Whole table: each name follows its amount.
What's next?
Score ≥ 80%: move on to Level 2 V3 (logical functions, lookup, dates — Wassim automates his closings).
Score between 50% and 80%: review the failed sections (value vs display in 1.1, parentheses in 1.2, COUNT vs COUNTA in 1.3, $E$1 in 1.4, whole-table sorting in 1.5), reread the explanations above, then retake the test.
Score < 50%: restart the level by running each template (type check 1.1, discount =B2*(1-C2) in 1.2, closing SUM/AVERAGE/MIN/MAX in 1.3, VAT =B2*$E$1 in 1.4, series + safe sorting in 1.5) on a real file.