How we got there
Read this like a teacher at the board. We go slowly, name every number, and say why we take each step.
Explain in another language · 11
1. What is the question asking?
Read the question twice. Circle the unknown. Underline every number and unit. The paper is asking: The Creditors control account shows R28 400. The Creditors list adds up to R27 150. Errors found: (a) an invoice of R1 500 from Supplier A was entered in the Creditors journal but not posted to Supplier A's account; (b) the Creditors journal total was undercast by R250. Calculate the correct totals.
Before any working — hunt first
Given
Numbers and units already in the sentence: R28 · 400 · R27 · 150 · R1 · 500 from · R250. Copy each one into a column. A name without a number is not given.
Missing
After you copy the given, the letter that still has no number is missing. The paper is pointing at: the correct totals. Circle that word — that is the missing variable.
Find
We are required to find: the correct totals. Write that as a symbol on the left, with a question mark, before you touch a formula.
Calculate
Write (a) list, (b) control with empty letters. Cross out every letter that already has a number. Calculate the letter that is still standing — that gives the correct totals.
In other words — as if you have never seen this before
If you have never seen this before: Decide for each error whether it affects the control account, the list, or both. A journal total is posted only to the control account; an individual posting affects only the list. We will name a method in words, write the formula with no numbers, then substitute one line at a time.
2. What do we already know?
Control R28 400. List R27 150. Two errors.
3. Which method — and why this one?
Decide for each error whether it affects the control account, the list, or both. A journal total is posted only to the control account; an individual posting affects only the list.
4. Step-by-step working
01 / 06
Identify the given
(a) Not posted to the creditor's account → only the LIST is wrong. (b) A journal total is posted to the general ledger → only the CONTROL account is wrong.
(a) list, (b) controlWhy this step: We only do one job per line so a marker can follow the marks — and so you can find a slip without starting over.
02 / 06
Add
List: R27 150+R1 500=R28 650.
27 150+1 500=28 650Why this step: We only do one job per line so a marker can follow the marks — and so you can find a slip without starting over.
03 / 06
Add
Undercast purchases make the credit side too small. Control: R28 400 + R250 = R28 650.
28 400+250=28 650Why this step: We only do one job per line so a marker can follow the marks — and so you can find a slip without starting over.
04 / 06
Sense-check
Both now show R28 650, so the reconciliation balances.
28 650=28 650Why this step: We only do one job per line so a marker can follow the marks — and so you can find a slip without starting over.
05 / 06
Step F — Box the answer with its unit
Correct control account and creditors list: R28 650 each.
Why this step: A number without a unit is half a mark on a Physics paper, and a marker can miss a Maths answer that is buried in working.
06 / 06
Step H — What the marker is looking for
On an NSC memo you usually earn: (1) a method mark for naming the right formula or idea in words, (2) an accuracy mark for substituting the given numbers with units, (3) an accuracy mark for the boxed answer with its unit. Write those three lines even if you are unsure of the arithmetic — blank pages score zero.
Why this step: First-timers chase the final number and leave the method blank. The memo still pays out for the idea and the substitution even when the last line is wrong.
5. The answer
Correct control account and creditors list: R28 650 each.
Copy onto your answer sheet — in this order
Formula: (a) list, (b) control
Answer: Correct control account and creditors list: R28 650 each.
6. Check it like a marker
If the corrected totals do not agree, there is still an error you have not found.
7. A trap first-timers fall into
First-timers often grab the first formula they remember, mix units (cm with m, minutes with seconds), or drop a minus sign. Write the formula in words first: “this equals that, because…”