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Ramon is saving per week to buy a new cell phone. The phone he wants costs . For how many weeks will he need to save his money? First, estimate your answer. Then figure out the actual number of weeks.

Remember that your estimate could be a natural, or counting, number such as , , , Try rounding up and down.

To find the actual number of weeks Ramon must save, use division and round your number up to the closest natural number.

Your estimate could be about weeks, but Ramon will actually need to save for weeks.