Question

Kareem has three gift cards in his wallet for the same store. Gift cards A, B, and C had original balances of $50, $75, and $80, respectively. Use estimation strategies to complete the statements below. Kareem estimated he could buy a watch that costs $80 using only his three gift cards. Kareem's estimate of $80 is reasonable because the total remaining balance for all three gift cards is approximately $, which is the cost of the watch he wants to buy.

A. $108

B. $112

C. $120

D. $128

Answer 1

The total remaining balance on the cards is $205 ($50 + $75 + $80 = $205). Therefore the correct option is B. $112

Step-by-step explanation:

Kareem's estimate of $80 for buying the watch using three gift cards is reasonable because the total remaining balance on the cards is $205 ($50 + $75 + $80 = $205), which exceeds the cost of the watch by $125. However, this exceeds the cost by more than expected.

By deducting $125 from $205, we find the closest total balance to the cost of the watch, which is $80. Therefore, $112 ($205 - $125 = $80) is a closer estimate to cover the watch's cost using the three gift cards.

Kareem estimated the combined balance by roughly adding the original values of the gift cards ($50 + $75 + $80 = $205). However, the actual usable amount is $125 less than this sum, resulting in a total balance closer to $80. This demonstrates that while estimating the total sum, it's crucial to account for the used amounts to arrive at a more accurate estimation.

Therefore the correct option is B. $112