Word Problems-Detailed Explanations Of Reasoning And Solving Strategies: Volume 12 Workbook-..
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This is the workbook of the twelfth volume of the entire set of 12 volumes of word problems solving strategies. If you want to set a solid foundation in math, grasping the techniques on solving word problems is the key to it. This set of books teaches you the techniques and strategies you will need to solve word problems. Sample question in this volume: Peter has read 120 pages of a book that he has just borrowed from the library. If the number of pages he has read is 2/5 less than the number of pages he has not read yet, how many pages does the book have? Reasoning and solution: From "the number of pages he has read is 2/5 less than the number of pages he has not read yet", we know that the number of pages he has not read yet ( the noun phrase after the word "than") is the amount in 1 whole and the number of pages he has read is in a fractional part that is 25 less than the fractional part the number of pages he has not read yet is in, 1, so the number of pages he has read is in a fractional part that is 2/5 less than 1 or is (1-2/5 ) or is 3/5 of 1 whole. He has read 120 pages so we divide 3/5 into the amount in it, 120, to find the amount in 1 whole, the number of pages he has not read yet: 120
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