Shen’s mother gave him 10 dollars to go buy groceries. He picked up a gallon of milk for 3 point 4 9 dollars , three pounds of oranges that cost 1 point 1 4 dollars per pound, and a box of cereal for 3 point 4 6 dollars Shen used front-end estimation to determine whether he had enough money for the groceries. How much did he estimate the total cost would be?
Answer
A
He estimated that he had about 10 point 4 0 dollars worth of groceries.
B
He estimated that he had about 10 point 3 0 dollars worth of groceries.
C
He estimated that he had about 9 dollars worth of groceries.
D
He estimated that he had about 7 dollars worth of groceries.
Explanation
Front-end estimation adds the dollar amounts at the beginning of each price and leaves off the cents. The milk is about $3, the oranges cost about $3 (three pounds at about $1 per pound), and the cereal is about $3. Together, $3 + $3 + $3 = $9, so he estimated about $9 worth of groceries.
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