6(b) B1 32 B1 for 3a × 5b 7(a) 15ab B2 B1 for partially simplified answer B1 for 15 × ab Q Additional Guidance Mark 7(a) Penalise further working, e.g. 3a × 5b = 15ab = 3(5ab) gets B1 15ba B2 A = 15ab B2 A(15ab) B2 15ab cm2 B2 A(3a × 5b) B1 (3a)(5b) B1 3a5b B1 15(ab) B1 3(5ab) B1 ab15 B1 (15ab)2 B0 B0 (3a × 5b)2 B0 3a × 5b2 B0
6(b) 32 B1 7(a) 15ab B2 B1 for 3a × 5b B1 for partially simplified answer B1 for 15 × ab Q Additional Guidance Mark 7(a) Penalise further working, e.g. 3a × 5b = 15ab = 3(5ab) gets B1 15ba A = 15ab A(15ab) 15ab cm2 A(3a × 5b) (3a)(5b) 3a5b 15(ab) 3(5ab) ab15 (15ab)2 (3a × 5b)2 3a × 5b2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B0 B0 B0 B0