How many times should I redo wrong items?

Until two papers of the same type are fully correct; reading the answer once is not enough.

Why has a parallelogram no line of symmetry?

No fold matches the two halves exactly, so the count is zero.

What if a turn is more than one full circle?

Add the angles, then subtract multiples of 360° to get an answer from 0° to 359°.

P4 Maths Symmetry and Rotation Paper 4: Error Review

2026-11-09

Tutor Prep Guide · P4 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: P4 Maths Symmetry and Rotation
Level	P4

02　Questions (10 items)

FoundationHow many lines of symmetry does an isosceles trapezium have?
FoundationHow many lines of symmetry does a parallelogram (not a rhombus or rectangle) have?
FoundationTurning a shape 120° clockwise three times gives what total angle?
IntermediateThe minute hand moves from 3 to 7 clockwise. What angle does it turn?
IntermediateA clockwise turn of 150° equals how many degrees anticlockwise?
IntermediateA shape matches itself after every 60° turn. How many turns until it first returns to the start?
ChallengeA square is turned 45° clockwise twice. Does it match the original?
ChallengeThe hour hand moves from 9 to 1 (past 12) clockwise. What angle is that?
ChallengeA shape is turned 130° clockwise twice. What is the total angle between 0° and 359°?
Error redoError review: a pupil says the diagonals of a rectangle are lines of symmetry. Is that right?

03　Answers and one-line notes

#	Answer	One-line note
1	1	Folding along the line joining the midpoints of the two parallel sides matches both halves, so there is 1.
2	0	No fold makes the two halves match, so the answer is 0.
3	360 degrees	120 times 3 = 360, one full circle, so the shape returns to its start.
4	120 degrees	Each hour mark is 30°, and 3 to 7 is 4 marks, so 30 times 4 = 120 degrees.
5	210 degrees	A full turn is 360°, and 360 minus 150 = 210, so it is 210 degrees anticlockwise.
6	6 turns	360 divided by 60 = 6, so after 6 turns of 60° it is back where it began.
7	Yes, it matches	45 times 2 = 90 degrees, and a square matches itself every 90°, so after two turns it matches.
8	120 degrees	From 9 to 1 is 4 marks of 30°, so 30 times 4 = 120 degrees, an obtuse angle.
9	260 degrees	130 times 2 = 260, which is less than a full circle, so the answer is 260 degrees.
10	No, a rectangle has only 2 lines of symmetry	Folding along a diagonal does not match the corners; only the two mid-point lines work, so there are 2.

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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Questions and answers are written originally by the TutorZone team and are not taken from any school, publisher or examination authority paper. Every value is checked by computer.