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Solving problems with picture graphs

CCSS.Math:

Video transcript

let's tackle some exercises with picture graphs and once again I'm using the Khan Academy exercises to do this so it says which towns had fewer sunny days than Sparkle City in June all right so if we look at the picture graph down here each picture of a Sun represents six sunny days and we want to say which towns had fewer what do they say fewer sunny days in sparkle city in June so sparkle city is this one right over here and sparkle city had let's see we have one two three four five pictures of a Sun each of those represents six sunny days so five times six sparkle city had thirty sunny days in June so which of these had fewer than thirty sunny days well you can just look at the picture graph itself and all of Sun vales shiny town and star village they don't have as many of these pictures of the Sun so they all had fewer sunny days we actually don't even have to calculate how many sunny days each of these represent although if you cared this would be four times six this would be twenty-four this would be two times six or twelve and this would be three times six or eighteen sunny days in June but all three of them Sun ville shiny town and star village Sun ville shiny town and star village all had fewer sunny days in sparkle city in June let's keep going let's do a couple more of these the graph shows how many mice a farmer found in her field each day for five days which day did the farmer find the same amount of mice as on Wednesday and Thursday combined all right let's look at this so each picture of a mouse represents two mice see on Wednesday and Thursday combined there's two ways to think about this on Wednesday and Thursday combined I have one picture of a mouse and then two more pictures of mice so that's a total of three pictures of mice so what other day do I have three pictures of mice well Tuesday I have three pictures of mice so I could just pick Tuesday now another way to think about it is on Wednesday the actual number of mice that were observed one picture means two mice so two mice on Wednesday four mice on Thursday have two pictures each of them represent two mice so two on Wednesday four on Thursday so six total and you see on Tuesday we have six mice were observed once again each of these pictures represent two so two four six so there you go all right let's keep going Funland had blank millimeters less rainfall than happy Ville in August so this right over here this is fun land this is happy Ville and each little raindrop picture represents six millimeters so fun Ville has two raindrop pictures happy Ville has four raindrop pictures so fun land had two less raindrop pictures so I had two less of these raindrops so two less raindrops would be two times six it would be twelve 12 millimeters less rainfall than happy Ville another way you could have thought about it Funland had 12 millimeters of rainfall in August because each of these six then twelve each of these represents six millimeters happy Ville had 6 12 18 24 millimeters so 12 millimeters versus 24 millimeters well fun land is going to have 12 millimeters less 12 millimeters is 12 less than 24 millimeters