Mark Scheme (Results)
November 2025
PEARSON EDEXCEL GCSE in Mathematics
Higher (Calculator)
1MA1/2H
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body.
We provide a wide range of qualifications including academic, vocational, occupational and
specific programmes for employers. For further information visit our qualifications websites
at www.edexcel.com or www.btec.co.uk.
Alternatively, you can get in touch with us using the details on our contact us page at
www.edexcel.com/contactus
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. Our aim is to help
everyone progress in their lives through education. We believe in every kind of
learning, for all kinds of people, wherever they are in the world. We’ve been
involved in education for over 150 years, and by working across 70 countries, in
100 languages, we have built an international reputation for our commitment to
high standards and raising achievement through innovation in education. Find
out more about how we can help you and your students at:
www.pearson.com/uk
November 2025
Question Paper Log Number P78238A
Publication Code 1MA1_2H_2511_MS
All the material in this publication is copyright
© Pearson Education Ltd
,General Marking Guidance
These notes offer general guidance, but the specific notes for examiners appertaining to individual questions take precedence.
1 All candidates must receive the same treatment. Examiners must mark the last candidate in exactly the same way as they mark the first.
Where some judgement is required, mark schemes will provide the principles by which marks will be awarded; exemplification/indicative content
will not be exhaustive. When examiners are in doubt regarding the application of the mark scheme to a candidate’s response, the response should
be sent to review.
2 All the marks on the mark scheme are designed to be awarded; mark schemes should be applied positively. Examiners should also be prepared to
award zero marks if the candidate’s response is not worthy of credit according to the mark scheme. If there is a wrong answer (or no answer) indicated
on the answer line always check the working in the body of the script (and on any diagrams), and award any marks appropriate from the mark scheme.
Questions where working is not required: In general, the correct answer should be given full marks.
Questions that specifically require working: In general, candidates who do not show working on this type of question will get no marks – full details
will be given in the mark scheme for each individual question.
3 Crossed out work
This should be marked unless the candidate has replaced it with
an alternative response.
4 Choice of method
If there is a choice of methods shown, mark the method that leads to the answer given on the answer line.
If no answer appears on the answer line, mark both methods then award the lower number of marks.
5 Incorrect method
If it is clear from the working that the “correct” answer has been obtained from incorrect working, award 0 marks. Send the response to review for
your Team Leader to check.
6 Follow through marks
Follow through marks which involve a single stage calculation can be awarded without working as you can check the answer, but if ambiguous do not
award.
Follow through marks which involve more than one stage of calculation can only be awarded on sight of the relevant working, even if it appears
obvious that there is only one way you could get the answer given.
,7 Ignoring subsequent work
It is appropriate to ignore subsequent work when the additional work does not change the answer in a way that is inappropriate for the question or
its context. (eg. an incorrectly cancelled fraction when the unsimplified fraction would gain full marks).
It is not appropriate to ignore subsequent work when the additional work essentially makes the answer incorrect (eg. incorrect algebraic
simplification).
8 Probability
Probability answers must be given as a fraction, percentage or decimal. If a candidate gives a decimal equivalent to a probability, this should be
written to at least 2 decimal places (unless tenths).
Incorrect notation should lose the accuracy marks, but be awarded any implied method marks.
If a probability fraction is given then cancelled incorrectly, ignore the incorrectly cancelled answer.
9 Linear equations
Unless indicated otherwise in the mark scheme, full marks can be gained if the solution alone is given on the answer line, or otherwise unambiguously
identified in working (without contradiction elsewhere). Where the correct solution only is shown substituted, but not identified as the solution, the
accuracy mark is lost but any method marks can be awarded (embedded answers).
10 Range of answers
Unless otherwise stated, when an answer is given as a range (e.g 3.5 – 4.2) then this is inclusive of the end points (e.g 3.5, 4.2) and all numbers within
the range.
11 Number in brackets after a calculation
Where there is a number in brackets after a calculation E.g. 2 × 6 (=12) then the mark can be awarded either for the correct method, implied by the
calculation or for the correct answer to the calculation.
12 Use of inverted commas
Some numbers in the mark scheme will appear inside inverted commas E.g. “12” × 50 ; the number in inverted commas cannot be any number – it
must come from a correct method or process but the candidate may make an arithmetic error in their working.
13 Word in square brackets
Where a word is used in square brackets E.g. [area] × 1.5 : the value used for [area] does not have to come from a correct method or process but is
the value that the candidate believes is the area. If there are any constraints on the value that can be used, details will be given in the mark scheme.
14 Misread
If a candidate misreads a number from the question. Eg. uses 252 instead of 255; method or process marks may be awarded provided the
question has not been simplified. Examiners should send any instance of a suspected misread to review.
,Guidance on the use of abbreviations within this mark scheme
M method mark awarded for a correct method or partial method
P process mark awarded for a correct process as part of a problem solving question
A accuracy mark (awarded after a correct method or process; if no method or process is
seen then full marks for the question are implied but see individual mark schemes for more
details)
C communication mark awarded for a fully correct statement(s)
with no contradiction or ambiguity
B unconditional accuracy mark (no method needed)
oe or equivalent
cao correct answer only
ft follow through (when appropriate as per mark scheme)
sc special case
dep dependent (on a previous mark)
indep independent
awrt answer which rounds to
isw ignore subsequent working
, Question Answer Mark Mark scheme Additional guidance
1 (a) 56 300 000 B1 cao
(b) 3.54 10−5 B1 cao
2 2 2 2 2 M1 for beginning to work with prime factors, Condone the inclusion of 1 for this
3 5 5 7 eg ( A = ) 2 3 5 or ( B = ) 23 5 7 mark only
Factor tree for 2 15 8 5 7 may
or ( A = ) 2,3,5 or ( B = ) 2, 2, 2,5, 7 be shown as a factor tree for
or for a complete method to find prime factors for 2 15 8 5 7 oe 30 280 or 8400
could be shown on a complete factor tree with no more than one
arithmetic error or by division by prime factors with no more than one
error
or for 2, 2, 2, 2,3,5,5, 7
A1 for 2 2 2 2 3 5 5 7 oe provided in prime factor form Accept 24 3 52 7
Prime factors may be written in any
SCB1 for an answer of 2 5 31 order
November 2025
PEARSON EDEXCEL GCSE in Mathematics
Higher (Calculator)
1MA1/2H
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body.
We provide a wide range of qualifications including academic, vocational, occupational and
specific programmes for employers. For further information visit our qualifications websites
at www.edexcel.com or www.btec.co.uk.
Alternatively, you can get in touch with us using the details on our contact us page at
www.edexcel.com/contactus
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. Our aim is to help
everyone progress in their lives through education. We believe in every kind of
learning, for all kinds of people, wherever they are in the world. We’ve been
involved in education for over 150 years, and by working across 70 countries, in
100 languages, we have built an international reputation for our commitment to
high standards and raising achievement through innovation in education. Find
out more about how we can help you and your students at:
www.pearson.com/uk
November 2025
Question Paper Log Number P78238A
Publication Code 1MA1_2H_2511_MS
All the material in this publication is copyright
© Pearson Education Ltd
,General Marking Guidance
These notes offer general guidance, but the specific notes for examiners appertaining to individual questions take precedence.
1 All candidates must receive the same treatment. Examiners must mark the last candidate in exactly the same way as they mark the first.
Where some judgement is required, mark schemes will provide the principles by which marks will be awarded; exemplification/indicative content
will not be exhaustive. When examiners are in doubt regarding the application of the mark scheme to a candidate’s response, the response should
be sent to review.
2 All the marks on the mark scheme are designed to be awarded; mark schemes should be applied positively. Examiners should also be prepared to
award zero marks if the candidate’s response is not worthy of credit according to the mark scheme. If there is a wrong answer (or no answer) indicated
on the answer line always check the working in the body of the script (and on any diagrams), and award any marks appropriate from the mark scheme.
Questions where working is not required: In general, the correct answer should be given full marks.
Questions that specifically require working: In general, candidates who do not show working on this type of question will get no marks – full details
will be given in the mark scheme for each individual question.
3 Crossed out work
This should be marked unless the candidate has replaced it with
an alternative response.
4 Choice of method
If there is a choice of methods shown, mark the method that leads to the answer given on the answer line.
If no answer appears on the answer line, mark both methods then award the lower number of marks.
5 Incorrect method
If it is clear from the working that the “correct” answer has been obtained from incorrect working, award 0 marks. Send the response to review for
your Team Leader to check.
6 Follow through marks
Follow through marks which involve a single stage calculation can be awarded without working as you can check the answer, but if ambiguous do not
award.
Follow through marks which involve more than one stage of calculation can only be awarded on sight of the relevant working, even if it appears
obvious that there is only one way you could get the answer given.
,7 Ignoring subsequent work
It is appropriate to ignore subsequent work when the additional work does not change the answer in a way that is inappropriate for the question or
its context. (eg. an incorrectly cancelled fraction when the unsimplified fraction would gain full marks).
It is not appropriate to ignore subsequent work when the additional work essentially makes the answer incorrect (eg. incorrect algebraic
simplification).
8 Probability
Probability answers must be given as a fraction, percentage or decimal. If a candidate gives a decimal equivalent to a probability, this should be
written to at least 2 decimal places (unless tenths).
Incorrect notation should lose the accuracy marks, but be awarded any implied method marks.
If a probability fraction is given then cancelled incorrectly, ignore the incorrectly cancelled answer.
9 Linear equations
Unless indicated otherwise in the mark scheme, full marks can be gained if the solution alone is given on the answer line, or otherwise unambiguously
identified in working (without contradiction elsewhere). Where the correct solution only is shown substituted, but not identified as the solution, the
accuracy mark is lost but any method marks can be awarded (embedded answers).
10 Range of answers
Unless otherwise stated, when an answer is given as a range (e.g 3.5 – 4.2) then this is inclusive of the end points (e.g 3.5, 4.2) and all numbers within
the range.
11 Number in brackets after a calculation
Where there is a number in brackets after a calculation E.g. 2 × 6 (=12) then the mark can be awarded either for the correct method, implied by the
calculation or for the correct answer to the calculation.
12 Use of inverted commas
Some numbers in the mark scheme will appear inside inverted commas E.g. “12” × 50 ; the number in inverted commas cannot be any number – it
must come from a correct method or process but the candidate may make an arithmetic error in their working.
13 Word in square brackets
Where a word is used in square brackets E.g. [area] × 1.5 : the value used for [area] does not have to come from a correct method or process but is
the value that the candidate believes is the area. If there are any constraints on the value that can be used, details will be given in the mark scheme.
14 Misread
If a candidate misreads a number from the question. Eg. uses 252 instead of 255; method or process marks may be awarded provided the
question has not been simplified. Examiners should send any instance of a suspected misread to review.
,Guidance on the use of abbreviations within this mark scheme
M method mark awarded for a correct method or partial method
P process mark awarded for a correct process as part of a problem solving question
A accuracy mark (awarded after a correct method or process; if no method or process is
seen then full marks for the question are implied but see individual mark schemes for more
details)
C communication mark awarded for a fully correct statement(s)
with no contradiction or ambiguity
B unconditional accuracy mark (no method needed)
oe or equivalent
cao correct answer only
ft follow through (when appropriate as per mark scheme)
sc special case
dep dependent (on a previous mark)
indep independent
awrt answer which rounds to
isw ignore subsequent working
, Question Answer Mark Mark scheme Additional guidance
1 (a) 56 300 000 B1 cao
(b) 3.54 10−5 B1 cao
2 2 2 2 2 M1 for beginning to work with prime factors, Condone the inclusion of 1 for this
3 5 5 7 eg ( A = ) 2 3 5 or ( B = ) 23 5 7 mark only
Factor tree for 2 15 8 5 7 may
or ( A = ) 2,3,5 or ( B = ) 2, 2, 2,5, 7 be shown as a factor tree for
or for a complete method to find prime factors for 2 15 8 5 7 oe 30 280 or 8400
could be shown on a complete factor tree with no more than one
arithmetic error or by division by prime factors with no more than one
error
or for 2, 2, 2, 2,3,5,5, 7
A1 for 2 2 2 2 3 5 5 7 oe provided in prime factor form Accept 24 3 52 7
Prime factors may be written in any
SCB1 for an answer of 2 5 31 order
