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300 school children went on a field trip. 30% of them were first graders, 45% second graders and the rest were third graders. How many more first graders were there than third graders

Respuesta :

yeetman9001

Answer:

just take 45 and 30 percent add them to get 75% so find 75 percent of 300 then subtract it and you get 75

Step-by-step explanation:

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