Add & Subtract Time
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Add & Subtract Time
We need to get to Derby at high tide at 1430 hours. It will take 8 hours. What time should we leave?
The first leg of our trip will take 3 hours and 30 minutes, the next leg will be 2 hours and 45 minutes. How long is that altogether?
You need to be able to add and subtract time to plan passages on a boat.