5 1 minute = __________ seconds 12 minutes = __________ seconds What operation would you use to change a larger unit to a smaller unit?________ What would you multiply 12 by to find the number of seconds in 12 minutes? __________ How many seconds are in 12 minutes? _________
7 Line Plots Review from Third Grade NUMBER OF ANIMALS PER HOUSEHOLDWhat do you remember about line plots?A line plot displays data above a __________ ___________.Each mark above the number line represents ___________________________.Line plots make it (easy or hard?) to see if data falls into groups or clusters.
12 Calculating Elapsed Time Record what you know:Start time: _____________Elapsed time: _____________End time: _______________
13 SOMETIMES you can subtract! How much time has elapsed from 1:20 to 3:45? 3:45 - 1:15
14 Sometimes you need to “borrow” 60 minutes, then subtract! How much time has elapsed from 2:45pm to 4:20pm? 4:20 3:80 - 2:45 - 2:45
15 SOMETIMES when the time has elapsed from AM to PM, or PM to AM, you must solve in two parts. How long are we in school from 9:00 am to 1:35pm? From 9:00 am to 12:00 pm (noon): 3 hours From 12:00 pm (noon) to 1:35 pm: + 1 hour 35 min
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