Question

Estimate the cost of 5 items at a grocery store if the items cost ​$7.63​, ​$5.50​, ​$​14.39, ​$3.44​, and ​$21.21.

Answer 1

To estimate the cost of 5 items at a grocery store, simply add up the prices of the items:

$7.63 + $5.50 + $14.39 + $3.44 + $21.21 = $52.17

So, the estimated cost of the 5 items at the grocery store is approximately $52.17.

Answer 2

You are basically being asked to estimate the addition sentence having all the items’ prices as addends; in other words to estimate the result of the following operation 7.63 + 5.50+ 14.39+3.44+21.21.

The estimation of the above operation is 8+6+14+3+21= 52.

So, the estimated cost of the 5 items at the grocery store is $52.