Ratio
Level 1 Quizzes
Ratio - General Level 1
http://highered.mcgraw-hill.com/sites/007092242x/student_view0/get_ready_for_grade_912/ratio_and_proportion_quiz.html
BBC Skillswise - Level 1
http://www.bbc.co.uk/skillswise/quiz/ma19rati-l1-quiz
Ratio - General Level 1
http://math.rice.edu/~lanius/proportions/quiz1.html
Level 2 Quizzes
Creating a Ratio - Level 2
http://www.softschools.com/quizzes/math/ratio_word_problems/quiz1309.html
GCSE Bitesize - Ratio - Level 2
http://www.bbc.co.uk/apps/ifl/schools/gcsebitesize/maths/quizengine?quiz=ratiotest&template
Ratio - General Level 1
http://highered.mcgraw-hill.com/sites/007092242x/student_view0/get_ready_for_grade_912/ratio_and_proportion_quiz.html
BBC Skillswise - Level 1
http://www.bbc.co.uk/skillswise/quiz/ma19rati-l1-quiz
Ratio - General Level 1
http://math.rice.edu/~lanius/proportions/quiz1.html
Level 2 Quizzes
Creating a Ratio - Level 2
http://www.softschools.com/quizzes/math/ratio_word_problems/quiz1309.html
GCSE Bitesize - Ratio - Level 2
http://www.bbc.co.uk/apps/ifl/schools/gcsebitesize/maths/quizengine?quiz=ratiotest&template
Scale
Level 1 Quizzes
BBC Skillswise Level 1 - Maps and Plans
http://www.bbc.co.uk/skillswise/quiz/ma32maps-l1-quiz
BBC Skillswise Level 1 - Maps and Plans
http://www.bbc.co.uk/skillswise/quiz/ma32maps-l1-quiz