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<navigation>
	<conceptcheck starttime="00:02:22:800" stoptime="00:02:28:000">
		<question>How many baskets of oranges were sold?</question>
		<answer value='20'>20</answer>
		<answer value='30'>30</answer>
		<answer value='40'>40</answer>
		<correct>20</correct>
	</conceptcheck>
	<conceptcheck starttime="00:04:36:000" stoptime="00:04:40:800">
		<question>How many more baskets of plums than oranges were sold?</question>
		<answer value='30'>30</answer>
		<answer value='40'>40</answer>
		<answer value='50'>50</answer>
		<correct>40</correct>
	</conceptcheck>
	<conceptcheck starttime="00:08:05:200" stoptime="00:08:07:600" inputY="360" questionY="300" >
		<question>How many bunches of grapes belong in the pictograph?</question>
		<correct>4</correct>
	</conceptcheck>
</navigation>
