Let’s solve this step by step.
We are tracking Doni’s checking account balance from October 1 to November 1, starting with $986.25.
We’ll go transaction by transaction and update the running balance after each one.
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Starting Balance (October 1): $986.25
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Check #1001 – Oct 1: Paycheck deposit of $556.75 → DEPOSIT
New balance = 986.25 + 556.75 =
$1,543.00
---
Check #1002 – Oct 3rd: Dinner bill $35.27 → PAYMENT
New balance = 1,543.00 - 35.27 =
$1,507.73
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Check #1003 – Oct 4th: Shopping trip — shoes $78.88, sweater $25.01, jeans $47.23 → Total = 78.88 + 25.01 + 47.23 = $151.12 → PAYMENT
New balance = 1,507.73 - 151.12 =
$1,356.61
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Check #1004 – Oct 15th: Birthday gift from grandfather $200.00 → DEPOSIT
New balance = 1,356.61 + 200.00 =
$1,556.61
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Check #1005 – Oct 18th: Groceries $65.42 → PAYMENT
New balance = 1,556.61 - 65.42 =
$1,491.19
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Check #1006 – Oct 20th: Customer paid her $181.15 → DEPOSIT
New balance = 1,491.19 + 181.15 =
$1,672.34
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Check #1007 – Oct 31st: Paid rent $605.00 → PAYMENT
New balance = 1,672.34 - 605.00 =
$1,067.34
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Nov 1st: Bank interest $0.45 → DEPOSIT
Final balance = 1,067.34 + 0.45 =
$1,067.79
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Now, the question asks:
What is the total change in Doni’s account?
That means: Final balance minus Starting balance
= 1,067.79 - 986.25 =
$81.54
✔ Let’s double-check that subtraction:
1,067.79
- 986.25
________
Start from right:
9 - 5 = 4
7 - 2 = 5
7 - 6 = 1
0 - 8 → can’t do, borrow → 10 - 8 = 2, but we borrowed so next digit becomes 9 (from 6) → wait, let’s line it up properly:
Actually:
1067.79
- 986.25
_________
Start from hundredths: 9 - 5 = 4
Tenths: 7 - 2 = 5
Ones: 7 - 6 = 1
Tens: 6 - 8 → can’t, borrow from hundreds → 16 - 8 = 8, but hundreds was 0? Wait — better to write as:
Think of it as:
1067.79 - 986.25
Break it down:
1067.79 - 900 = 167.79
167.79 - 86 = 81.79
81.79 - 0.25 = 81.54
✔
Yes, correct.
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Final Answer:
$81.54
Parent Tip: Review the logic above to help your child master the concept of how to balance a checkbook worksheet.
