Solving Equations Continuum

So the idea behind this activity is that there’s very little difference between each different worksheet but a large difference between polar opposites. Pupils answer the first 5 questions. If they get them all correct first time they move up a step, otherwise they answer the rest of the questions on that level.

The levels are:
Red - Solving one-step using balances and bar models
Orange - Solving one-step represented algebraically (positive and negative integers)
Yellow - Solving one-step represented algebraically including fractions, decimals and worded questions
Green - Solving two-step using balances and bar models with a few represented algebraically
Blue - Solving two-step represented algebraically (positive and negative integers)
Purple - Solving two-step represented algebraically including fractions and decimals
White - Solving two-step worded questions