The path-vvay to knovvledge : containing the whole art of arithmeticke, both in whole numbers and fractions; with the extraction of roots; as also a briefe introduction or entrance into the art of cossicke numbers, with many pleasant questions wrought thereby. Digested into a plaine and easie methode by way of dialogue, for the better vnderstanding of the learners thereof. Wherewith is also adioyned a briefe order for the keeping of marchants bookes of accompts, by way of debitor and creditor.