M1.          Award TWO marks for the correct answer of 10 000.
          If answer is incorrect, award ONE mark for evidence of an appropriate strategy, eg:
•    12500 ÷ 5 × 4
Up to 2
[2]

 

M2.          Award TWO marks for the correct answer of 4.9 OR –4.9
Accept variations such as 4.90 etc.
          If answer is incorrect, award ONE mark for evidence of an appropriate method, eg:
           = incorrect answer
Accept for the award of ONE mark three steps of trial and
improvement leading to an incorrect answer, even though
this is an inappropriate method of solving this problem, eg:
4.5 × 4.5 = 20.25
5 × 5 = 25
4.7 × 4.7 = 22.09
Up to 2
[2]

 

M3.          Award TWO marks for the correct answer of 64
If the answer is incorrect, award ONE mark for evidence of an appropriate
method, eg
216 = 6 × 6 × 6
6 ÷ 1.5 = 4
number of cubes = 4 × 4 × 4
OR 1.5 × 1.5 × 1.5 = 3.375
number of cubes = 216 ÷ 3.375
Calculation need not be completed for the award of the mark.
Up to 2
[2]

 

M4.          Award TWO marks for a correct answer of £3.50
          If the answer is incorrect, award ONE mark for evidence of an appropriate
method, eg
•    adult + child is £17 ÷ 2 = £8.50
adult + 4 children is £19, so 3
children cost £10.50, so 1 child costs £10.50 ÷ 3
•    2 adults + 8 children = £38.00
6 children cost £21, so 1 child costs £21 ÷ 6
Accept for TWO marks £3 50 OR £3-50 OR £3.50p
Accept for ONE mark £3.5 OR £350p OR £350 OR similar as evidence of appropriate working.
Calculation need not be completed for the award of the mark.
Up to 2
[2]

 

M5.          Award TWO marks for the correct answer of £7 OR £7.00
          If the answer is incorrect, award ONE mark for evidence of an appropriate
method, eg
          5% = 35
100% = 35 × 20
Accept for TWO marks £7.00p OR £7 00
Accept for ONE mark £700 OR £700p as evidence of an
appropriate method.
Up to 2
[2]

 

M6.          Award TWO marks for the correct answer of 184
          If the answer is incorrect award ONE mark for evidence of an
appropriate method, eg
          46 ÷ 2 × 8
The calculation need not be completed for the award of the mark.
Up to 2
[2]

 

M7.          Award TWO marks for the correct answer of 52
          If the answer is incorrect award ONE mark for evidence of an
appropriate method, eg
          51 × 10 = 510
          so number of matches =
          510 – ((49 × 3) + (50 × 2) + (54 × 2) + 51 + 52)
The calculation need not be completed for the award of the mark.
Up to 2
[2]

 

M8.          (a)     Award TWO marks for the correct answer of 1.5%
          If the answer is incorrect, award ONE mark for evidence of an appropriate method, eg
          93 ÷ 6200 × 100
Calculation need not be completed for the award of the mark.
Up to 2

(b)     Award TWO marks for a calculation
that demonstrates that Mike is correct, ie
          that 93 000 000 each year is equivalent to approximately
177 people each minute.
Ignore any incorrect rounding of a correct calculation.

          Award ONE mark for evidence of an appropriate method to calculate the equivalent increase in population each minute, eg
          93 000 000 ÷ 365 ÷ 24 ÷ 60
Calculation need not be completed for the award of the mark.
Accept methods that use any of the following for the number of days in the year:
365 OR 366 OR 365.25 OR 52 × 7
Accept for ONE mark the correct method even if it leads to the wrong conclusion.
Up to 2
[4]

 

M9.          Award TWO marks for the correct answer of 220
          If the answer is incorrect, award ONE mark
for evidence of an appropriate method, eg
275 ÷ 5 × 4
Answer need not be obtained for the award of the mark.
Up to 2
[2]

 

M10.          Award TWO marks for the correct answer of 60%
          If the answer is incorrect, award ONE mark
for evidence of an appropriate method, eg

Answer need not be obtained for the award of the mark.
Up to 2
[2]

 

M11.         16.8p or 17p or equivalent 
2
or
Shows the digits 168 or 17 
or
Shows a complete correct method with not more than one computational or rounding error eg •      56 × 10 × 3 ÷ 100 •      5.6(0) × 0.03 •      560 ÷ 100 = 5.6 6p (premature rounding) × 3 = 18
! Money See general guidance
1
[2]

M12.          19
U1
[1]

M13.2
! Money
2
or
Shows the digits 15(…) or 16 as evidence of a
correct method (correct value but not correctly
rounded to the nearest penny), eg:

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