1123 50 Math Tricks That Will Change Your Life: Mentally Solve the Impossible in SecondsIn this book, you'll uncover 50 unbelievable ways you can manipulate numbers to solve equations, word problems and brain teasers in a flash, no calculator required. 208 pages pb
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In this book, you'll uncover 50 unbelievable ways you can manipulate numbers to solve equations, word problems and brain teasers in a flash, no calculator required. 208 pages pb
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1123 50 Math Tricks That Will Change Your Life: Mentally Solve the Impossible in Seconds