Here are my same surface different depth problems!
Lots of students don’t read questions carefully enough and just assume what the question is asking them to do based on the basic information in the question.
These problems aim to combat this.
Each page contains 4 problems that, on the surface, appear the same (or at least very similar!)
However each question requires different skills to solve.
This means students have to read the question very carefully to deduce which skill they should be using.
Enjoy!
Skills required:

Area of a rectangle

Area of a parallelogram

Calculate one number as a percentage of another

Round to significant figures
Skills required:

Trigonometry (SOHCAHTOA)

Angles on straight line add to 180 or angles in parallel lines

Rounding to decimal places
Skills required:

Pythagoras' Theorem

Properties of quadrilaterals

Reasoning
Skills required:

Pythagoras' Theorem

Perimeter

Functional skills

Reasoning