Ignore incorrect units stated, mark intention Or equivalents all in p or all in £ Accept equivalent 720 × 80p + 200 × (£)1 FT for ‘their 200 large bags’ × (£)1.80 and ‘their 520 small bags’ × 80p, provided ‘their 200’ ≥ 50 and ‘their 520’ ≥ 130, ‘their 520’ ≠ ‘their 200’ and both are whole numbers
(£) 776
A2
CAO A1 for either
a correctly evaluated sum with one correct evaluation of a product or
on FT for the correct evaluation of ‘their smaller value’×(£)1.80 + ‘their larger value’×80p
For example 100 × (£)1.80 + 260 × 80p = £388 is awarded M0 A0 M1 A1
If initial M1, A2 awarded also award SC1 for one of the following seen:
200 × 80(p) + 520 × (£)1.80 = (£)1096
£360 and £416 (no method mark as not added)
If no marks, award SC1 for sight of 260(°)
Mark scheme (b)
Scheme
Marks
Comments
Method to compare, e.g.
(Small bag per kg) 2.5 × 80 or 80×1000÷400
(Per 100g) small 80p ÷ 4 and large £1.80÷ 10
(g per penny) 400 ÷ 80 and 1000 ÷ 180
(Per 200g) 80p ÷ 2 and £1.80 ÷ 5
(Per 2000g) 5 × 80p and 2 × £1.80
(Large bag per 400g) £1.80 × 0.4
M1
Needs to show comparing like quantity with like
Accurate comparison calculation, e.g.
(Small bag per kg) £2
(Per 100g) small 20p and large18p
(g per penny) small 5g and large 5.5(5...) or 5.6g
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