60 likes | 304 Views
Click for solution. Find the total of 5 hours 10 minutes 3 hours 23 minutes 6 hours 39 minutes. +. The total time is:. hours minutes. 14. 15. 72. 12. More than 60 minutes?. YES: convert 60 minutes into one hour. 72 – 60 = 12 minutes left. 14 + 1 = 15 hours.
E N D
Click for solution Find the total of 5 hours 10 minutes 3 hours 23 minutes 6 hours 39 minutes + The total time is: hours minutes 14 15 72 12 More than 60 minutes? YES: convert 60 minutes into one hour 72 – 60 = 12 minutes left 14 + 1 = 15 hours Designed by Lukas van Veen
Find the total of 7 hours 50 minutes 4 hours 40 minutes 6 hours 55 minutes More than 60 minutes? + The total time is: 17 hours minutes 18 19 145 85 25 YES: convert 60 minutes into one hour More than 60 minutes? 145 – 60 = 85 minutes left 17 + 1 = 18 hours YES: convert 60 minutes into one hour 85 – 60 = 25 minutes left 18 + 1 = 19 hours Designed by Lukas van Veen
WORKING WITH THE 24 HOUR CLOCK More than 60 minutes? Start time : 22 : 45 Time worked : 6 h 40 min : 06 : 40 End time : ??? : + 28 29 05 25 85 YES: convert 60 minutes into one hour The end time is 05:25 More than 24 hours? 85 – 60 = 25 minutes left 28 + 1 = 29 hours YES: take away 24 hours 29 - 24 = 05 hours Designed by Lukas van Veen
WORKING WITH THE 24 HOUR CLOCK NO: add 24 hours Cannot subtract hours? 29 : 90 05 : 90 NO: convert one hour into 60 minutes End time : 06 : 30 Time worked : 8 h 45 min : 08 : 45 Start time : ??? : - Cannot subtract minutes? 21 45 30 + 60 = 90 minutes The start time is 21:45 6 - 1 = 5 hours 05 + 24 = 29 hours Designed by Lukas van Veen
WORKING WITH THE 24 HOUR CLOCK NO: add 24 hours Cannot subtract hours hours? 26 : 75 02 : 75 NO: convert one hour into 60 minutes End time : 03 : 15 Start time : 18 : 30 Duration : ??? : - Cannot subtract minutes? 8 45 15 + 60 = 75 minutes The duration is 8 hours 45 minutes 3 - 1 = 2 hours 02 + 24 = 26 hours Designed by Lukas van Veen