Year 8 math worksheets | year 8 worksheets VerkkoYear 8 math worksheets | year 8 worksheets ... L.C.M. and H.C.F., scientific notation, square roots, Pythagorean Theorem, tables, coordinate geometry etc. The activities in this page correspond to the key stage 3 U.K. system of education. This level is for children of 12 years and 13 years old.