Find Hiroshi’s mistake and correct it. Write at least 3 sentences.
Hiroshi is determining -42 - (-37). Find his mistake and correct it.
-42 - (-37) = 42 - 37 = 5

Kelli swam upstream for some distance in a hour.she then swam downstream the same river for the same distance in only 6 minutes.if the river flows at 5km/hr, how fast can kelli swim in still water?