Attention to detail: Practice 1

10 original teaching questions with answers and explanations.

Instructions for this set

Compare exactly unless a question states a normalisation rule. Dates use ISO YYYY-MM-DD when shown. Do not assume differences are harmless.

Feedback mode has no time limit or negative marking. The optional timed challenge allows 15 minutes and uses the scoring shown on its rules screen. Those settings are not official assessment rules.

Practise with feedback Optional timed challenge

  1. 1. Which copy exactly matches reference AB7-0429-X?
    1. AB7-0429-X
    2. AB7-0492-X
    3. AB7-0429-Y
    4. A87-0429-X

    Reference: q-bdb98309-49 · Report this question

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    Answer: A. AB7-0429-X

    Only the first option preserves every character and its order.
  2. 2. Source amount: $1,084.70. Copied amount: $1,048.70. What changed?
    1. No change
    2. The 8 and 4 were transposed
    3. The decimal point moved
    4. A zero was removed

    Reference: q-f6733369-66 · Report this question

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    Answer: B. The 8 and 4 were transposed

    The source ends its integer part in 084 while the copy has 048. The positions of 8 and 4 swapped.
  3. 3. Which ISO date is earliest?
    1. 2026-11-03
    2. 2026-03-11
    3. 2026-10-31
    4. 2026-04-01

    Reference: q-511785d3-28 · Report this question

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    Answer: B. 2026-03-11

    All years match. March is earlier than April, October and November.
  4. 4. Reference: client R204, invoice 0081. Which record is a duplicate under the rule that both fields must match?
    1. R204 / 0081
    2. R204 / 0082
    3. R240 / 0081
    4. R204 / 0810

    Reference: q-d386435e-110 · Report this question

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    Answer: A. R204 / 0081

    The combined key R204 plus 0081 matches only in the first option.
  5. 5. An order has 8 items at $12 each. Shipping is $9. Which invoice total is correct, with no tax or discounts?
    1. $96
    2. $103
    3. $105
    4. $117

    Reference: q-91a58a4-108 · Report this question

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    Answer: C. $105

    Items cost 8 times 12 = $96. Adding $9 shipping gives $105.
  6. 6. Which pair differs by exactly one character?
    1. LM804 / LM804
    2. Q72B9 / Q72B8
    3. XZ10 / ZX01
    4. AB56 / AB65

    Reference: q-b42e60f6-45 · Report this question

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    Answer: B. Q72B9 / Q72B8

    Only the final character changes in Q72B9 versus Q72B8. The equal pair has zero changes; the other pairs have more than one.
  7. 7. A field must contain exactly five digits, including any leading zeros. Which entry is valid?
    1. 07342
    2. 7342
    3. 0734A
    4. 073420

    Reference: q-3b323825-93 · Report this question

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    Answer: A. 07342

    07342 has five characters and all are digits. Leading zeros are permitted by the rule.
  8. 8. Source list: 17, 24, 38, 46. Copy: 17, 24, 83, 46. Which position contains the error?
    1. First
    2. Second
    3. Third
    4. Fourth

    Reference: q-3abf290c-86 · Report this question

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    Answer: C. Third

    The third value changed from 38 to 83; the other positions match.
  9. 9. After ignoring letter case only, which entry matches North-Desk?
    1. NORTH-DESK
    2. North Desk
    3. North_Desk
    4. North-Desk2

    Reference: q-e4160666-65 · Report this question

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    Answer: A. NORTH-DESK

    Ignoring case makes NORTH-DESK equivalent. The other options change punctuation or add a character.
  10. 10. A checklist requires status APPROVED and amount below $500. Which record meets both requirements?
    1. APPROVED / $499
    2. PENDING / $450
    3. APPROVED / $500
    4. REJECTED / $100

    Reference: q-62af0ec0-98 · Report this question

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    Answer: A. APPROVED / $499

    Only APPROVED with $499 meets both conditions. Below $500 excludes exactly $500.

Review your method

Return to the attention to detail lesson and identify the reasoning step behind each mistake before repeating the set.

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