Question

Shen’s mother gave him $10 to go buy groceries. He picked up a gallon of milk for $3.49, three pounds of oranges that cost $1.14 per pound, and a box of cereal for $3.46. 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?

He estimated that he had about $7 worth of groceries.
He estimated that he had about $9 worth of groceries.
He estimated that he had about $10.30 worth of groceries.
He estimated that he had about $10.40 worth of groceries.What is the value of –112.84 – 54.14 – (–29.18)?

Answer 1

Shen’s mother gave him $10 to go buy groceries. He picked up a gallon of milk for $3.49, three pounds of oranges that cost $1.14 per pound, and a box of cereal for $3.46. 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?

He estimated that he had about $7 worth of groceries.

He estimated that he had about $9 worth of groceries.

He estimated that he had about $10.30 worth of groceries.

He estimated that he had about $10.40 worth of groceries.What is the value of –112.84 – 54.14 – (–29.18)?

Total cost would be $10.37 which is $(10.37 - 10) = $0.37 higher than the amount given to him by his mother.