What is the point of an error review paper?

It targets the unit conversions and mixed unit sums that are most often wrong, so the same mistake is fixed once.

What is the most common conversion mistake?

Forgetting that 1 litre is 1000 millilitres and 1 kilogram is 1000 grams, for example writing 40 grams as 0.4 kilogram.

Is more practice needed after this paper?

All four papers in this chapter are now complete, so move on to the area chapter or another P3 topic.

P3 Maths Capacity and Weight Paper 4: Error Review

2026-11-09

Tutor Prep Guide · P3 Maths

Ten original items, each with an answer and a one-line explanation.

Direct answers　Items 1-3 are basic, 4-6 intermediate and 7-9 challenge, with item 10 as the error review. Time yourself first, then check each answer and redo what is wrong.

01　Paper details (check answers afterwards)

Item	Detail
Questions	10
Suggested time	20
Difficulty mix	Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1
Chapter	Chapter: P3 Maths: Capacity and Weight
Level	P3

02　Questions (10 items)

FoundationHow many millilitres are there in 2 litres?
FoundationHow many grams are there in 5 kilograms?
FoundationWhat is 450 millilitres plus 550 millilitres?
IntermediateSubtract 750 millilitres from 2 litres 250 millilitres.
IntermediateA 1.5 litre bottle of juice is shared equally into 5 cups. How much is in each cup?
IntermediateWhat is the difference between 3 kilograms 200 grams and 2900 grams?
ChallengeIf 250 millilitres of milk is drunk each day, how many days will 2 litres last?
ChallengeSeven packs of sugar weigh 400 grams each. After using 1 kilogram 900 grams, how much is left?
ChallengeA 5 litre tank holds 2 litres 500 millilitres of water. Filling at 500 millilitres per minute, how many more minutes are needed?
Error redoA student wrote 1 kilogram 40 grams as 140 grams. What is the correct mass in grams?

03　Answers and one-line notes

#	Answer	One-line note
1	2000 millilitres	One litre is 1000 millilitres, so 2 times 1000 = 2000 millilitres.
2	5000 grams	One kilogram is 1000 grams, so 5 times 1000 = 5000 grams.
3	1000 millilitres, that is 1 litre	450 + 550 = 1000 millilitres, which is exactly 1 litre.
4	1500 millilitres, that is 1 litre 500 millilitres	2 litres 250 millilitres is 2250 millilitres, and 2250 minus 750 = 1500 millilitres.
5	300 millilitres	1.5 litres is 1500 millilitres, and 1500 divided by 5 = 300 millilitres.
6	300 grams	3 kilograms 200 grams is 3200 grams, and 3200 minus 2900 = 300 grams.
7	8 days	2 litres is 2000 millilitres, and 2000 divided by 250 = 8 days.
8	900 grams	7 times 400 = 2800 grams, and 2800 minus 1900 = 900 grams.
9	5 minutes	The gap is 5000 minus 2500 = 2500 millilitres, and 2500 divided by 500 = 5 minutes.
10	1040 grams	One kilogram is 1000 grams, so 1000 + 40 = 1040 grams, not 140 grams.

04　What to do after marking

After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
Repeat the same item two days later; move to the next paper only when both attempts are correct.
Parents only need the answer and note columns; there is no need to explain every item.

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