Leslie has $25 in her checking account and writes a check for $8. What is her new balance?
A$17
B$33
C$27
D-$3
Answer & Solution
Correct answer: A. $17
1. Writing a check for $8 reduces the balance, so subtract 8 from the starting balance.
2. 25 minus 8 equals 17.
3. The new balance is $17.
4. Adding the check amount instead of subtracting it would incorrectly increase the balance to $33.
5. Miscounting the subtraction as 25 minus 2 instead of 25 minus 8 gives the wrong value of $27.
6. Continuing to subtract past zero without stopping at the correct difference would overshoot to a negative balance of -$3, which does not match this single check.
_Source: OpenStax Prealgebra (CC BY 4.0), Ch 3 "Integers", section 3.3 Subtract Integers_
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