Question

determine the following estimate without using a calculator. then use a calculator to perform the computation necessary to obtain an exact answer. how reasonable is your estimate when compared to the actual answer?
estimate the total cost of six grocery items if their prices are $11.09, $7.05, $3.32, $11.94, $7.85, and $1.02, by rounding each price to the nearest dollar and then adding.
the estimate of the total cost of the grocery items is $ 42. (type a whole number)
the actual total cost of the grocery items is $ 42.27.
how reasonable is your estimate when compared to the actual answer? select the correct answer below and fill in the answer box to complete your choice.
a. the estimate is a little higher than the actual result. the difference is $

b. the estimate is a little lower than the actual result. the difference is $

Explanation:

Step1: Round each price

Round $11.09$ to $11$, $7.05$ to $7$, $3.32$ to $3$, $11.94$ to $12$, $7.85$ to $8$, $1.02$ to $1$.

Step2: Sum the rounded prices

$11 + 7 + 3 + 12 + 8 + 1 = 42$.

Step3: Compare estimate and actual

Actual total is $42.27$. Estimate is $42$, so estimate is lower. Difference: $42.27 - 42 = 0.27$.

Answer:

B. The estimate is a little lower than the actual result. The difference is $0.27$.