Which level is it for?

P1, for securing numbers to 20 and simple addition and subtraction.

How many items are in this paper?

Ten: three basic, three intermediate, three challenge and one redo item.

How long should it take?

About 20 to 30 minutes; finish under timing before checking.

Are these past public examination questions?

No. All items are original and are not past papers or official marking schemes.

What if a child gets one wrong?

Read the one-line explanation, then redo a similar item to locate the gap.

P1 Maths Numbers to 20 Paper 2: Intermediate

2026-11-09

Tutor Prep Guide · P1 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	25
Difficulty mix	Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1
Chapter	Chapter: P1 Maths: Numbers to 20
Level	P1

02　Questions (10 items)

FoundationWhat are the numbers just before and just after 15?
FoundationIf 6 + 7 = 13, then 13 – 6 = ?
Foundation2 + 3 + 4 + 5 = ?
IntermediateStart at 5 and add 3 each time. What is the fourth number?
IntermediateSubtract 4 from 20, then subtract 6. What is left?
IntermediateWhich number is 6 more than 7?
ChallengeWhat is the difference between 13 and 8?
Challenge17 is made of 9 and which other number?
Challenge20 is shared equally into 4 groups. How many in each group?
Error redo16 – 9 = ? (Redo: 8 was the earlier answer)

03　Answers and one-line notes

#	Answer	One-line note
1	14 and 16	On the number line 14 sits before 15 and 16 sits after it.
2	7	Addition and subtraction undo each other, so taking 6 from 13 leaves 7.
3	14	2 plus 3 is 5, plus 4 is 9, plus 5 is 14.
4	14	The numbers are 5, 8, 11 and 14, so the fourth is 14.
5	10	20 – 4 = 16 and 16 – 6 = 10.
6	13	More than means addition: 7 + 6 = 13.
7	5	Subtract to find the difference: 13 – 8 = 5.
8	8	17 – 9 = 8, so 17 = 9 + 8.
9	5	20 / 4 = 5, so each group has 5.
10	7	9 + 8 makes 17, not 16, so 16 – 9 = 7.

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.