Multi -levelled problems with each set covering the same strategy. Colour coded for quick reference- blue easier, yellow harder, red challenge.
Answers and possible strategies included. Helpful hints for teachers regarding how children may solve the activity.
Could be laminated and added to a maths problem solving box. Tried, tested and enjoyed in the classroom. Makes children THINK. Could develop into a whole lesson, children working cooperatively sharing strategies as a math community or as a stand alone activity for practice or assessment.