Concept explainers
Living in the past. Your watch currently reads “8:00.” What time did it read 24 hours earlier? Ten hours earlier? Twenty-five hours earlier? What time did it read 2400 hours earlier?
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The Heart of Mathematics: An Invitation to Effective Thinking, WileyPLUS NextGen Card with Loose-leaf Set Single Semester: An Invitation to Effective Thinking (Key Curriculum Press)
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