Tekriwal, Gaurav creator author. text nyu 2014 monographic eng

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xi, 272 pages : illustrations ; 23 cm "Simple methods for doing math quickly in your head; Shortcuts and tricks for on-paper calculations; Helpful insights to improve your understanding"-- High-speed operations. Multiplication ; Addition ; Subtraction ; Division ; Checking your answers with digit sums -- High-speed math applications. Fractions ; Decimals ; Percentages ; Divisibility ; Squared numbers ; Cubed numbers ; Numbers to the fourth and fifth powers ; Square and cube roots -- Practice problems -- Answer key. by Gaurav Tekriwal. Includes index. Arithmetic Arithmetic Problems, exercises, etc QA111 .T44 2014 513.2076 9781615643165 1615643168 2013945257 BTCTA 130715 20260825111256.0 17812644 eng