Let’s solve each problem one by one, step by step.
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Problem a:
Jane bought shoes for $25.10 and a handbag for $50.11. How much did all items cost?
We need to
add the two amounts:
$25.10 + $50.11
Add dollars: 25 + 50 = 75
Add cents: 10 + 11 = 21 → that’s $0.21
So total = $75.21
✔ Check:
25.10
+50.11
= 75.21 ✔️
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Problem b:
Nina’s tuition was $17,669 as a day student. Then it increased to $43,680 as a boarding student. By how much did it increase?
We need to find the
difference — subtract the old amount from the new amount:
$43,680 - $17,669
Let’s subtract:
Start from the right:
- 0 - 9 → can’t do, borrow → 10 - 9 = 1 (but we borrowed, so next digit becomes 7)
Wait — better to write it out:
43,680
– 17,669
__________
Starting from ones place:
0 – 9 → borrow from tens → 10 – 9 = 1
Tens: 7 (after borrow) – 6 = 1
Hundreds: 6 – 6 = 0
Thousands: 3 – 7 → can’t do, borrow from ten-thousands → 13 – 7 = 6
Ten-thousands: 3 (after borrow) – 1 = 2
So result is
26,011
✔ Check:
17,669 + 26,011 = 43,680 ✔️
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Problem c:
New textbook costs $50.97. Second-hand version costs $35.00. How much money did Angela’s mum save?
Save means:
subtract what she paid from original price.
$50.97 – $35.00
Subtract:
Dollars: 50 – 35 = 15
Cents: 97 – 00 = 97
So saved = $15.97
✔ Check:
35.00 + 15.97 = 50.97 ✔️
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Problem d:
Richard has $597.82 in his account. He deposits $925.75. How much does he have now?
Deposit means
add.
$597.82 + $925.75
Add:
Dollars: 597 + 925 = let’s break it down:
500 + 900 = 1400
97 + 25 = 122
Total dollars = 1400 + 122 = 1522
Cents: 82 + 75 = 157 → that’s $1.57
So total = 1522 + 1.57 =
$1523.57
Wait — let me add properly with alignment:
597.82
+ 925.75
_________
Ones: 7 + 5 = 12 → write 2, carry 1
Tens: 9 + 2 + 1 = 12 → write 2, carry 1
Hundreds: 5 + 9 + 1 = 15 → write 5, carry 1 → but wait, actually:
Better to align decimal:
597.82
+ 925.75
____________
Right to left:
Hundredths: 2 + 5 = 7
Tenths: 8 + 7 = 15 → write 5, carry 1
Ones: 7 + 5 + 1 = 13 → write 3, carry 1
Tens: 9 + 2 + 1 = 12 → write 2, carry 1
Hundreds: 5 + 9 + 1 = 15 → write 5, carry 1 → then thousands: 1
So: 1 (thousand), 5 (hundreds), 2 (tens), 3 (ones), .5 (tenths), 7 (hundredths)
→
$1,523.57
✔ Check:
597.82 + 925.75 = 1523.57 ✔️
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Final Answer:
a. $75.21
b. $26,011
c. $15.97
d. $1,523.57
Parent Tip: Review the logic above to help your child master the concept of money worksheet for 5th grade.