Exercise 1. Group the words given below into two groups with the stress on the first and on the second syllable. In the meanwhile, unknown to him, Gottileb Daimler was in the process of creating the world's first four-wheel horseless carriage.This set of problem solving questions has been designed to support teachers when teaching students about problem solving in mathematics. It provides students with the opportunity to work through 20 maths word problems, identifying the important information and how they can work it out using a variety of methods. An answer sheet has been included. Interior and exterior angles of polygons worksheet answers