Herman likes to feed the birds in December, January and February. He feeds them 1/2 cup in the morning and 1/2 cup in the afternoon. How many cups of food will he need for all three months?
Let's be accurate as possible. Think before you answer.
90
December has 31 days, January has 31 days and February has 28 days for a total of 31 + 31 + 28 = 90 days.

He feeds them 1 / 2 cup in the morning and 1 / 2 cup in the afternoon for a total of 1 / 2 + 1 / 2 = 1 cup per day.

If he feeds them 1 cup per day for 90 days then he will need 1 * 90 = 90 cups of birdseed.

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The answer is 90