This is designed to get students thinking rather than just blindly following a mathematical recipe. There a four sets of 4 problems which all have the same answer (given in the centre of the screen). Each question has a blank for the students to fill in and sometimes there is more than one answer for the blank. This particular one covers fractions, decimals, percentages, sequences, probability, expressions (algebra), quadratics, standard form, indices and other topics. I will be using these as starters to get students thinking.