Guess What Grammar and Vocabulary Cheat Sheets

1972 J.S. Kilby, J.D. Merryman (American) --- electronic pocket calculator Measurement Time. 100 years = 1 century. 366 days = 1 leap year. 12 months = 1 year. 28-31 days = 1 month. 7 days = 1 week. 24 hours = 1 day. 60 minutes = 1 hour. 60 seconds = 1 minute. Volume. 1 liter = 1000 milliliters. 1 gallon = 4 quarts. 1 quart = 2 pints ................
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