Money Subtraction | Education World - Free Printable
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Step-by-step solution for: Money Subtraction | Education World
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Show Answer Key & Explanations
Step-by-step solution for: Money Subtraction | Education World
Let’s solve each subtraction problem step by step. We’ll go row by row, left to right.
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First Row:
1. $2.30 - $1.34
Think: 2.30 minus 1.34
Start from the right:
0 - 4 → can’t do, so borrow from 3 (tenths place).
10 - 4 = 6
Now tenths place: 2 (after borrowing) - 3 → can’t do, borrow from 2 (dollars).
12 - 3 = 9
Dollars: 1 (after borrowing) - 1 = 0
So: $0.96
2. $6.00 - $2.29
0 - 9 → borrow → 10 - 9 = 1
Tenths: 9 (after borrow) - 2 = 7
Dollars: 5 (after borrow) - 2 = 3
So: $3.71
3. $7.30 - $5.20
Easy!
0 - 0 = 0
3 - 2 = 1
7 - 5 = 2
So: $2.10
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Second Row:
4. $1.09 - $0.87
9 - 7 = 2
0 - 8 → can’t, borrow from 1 → 10 - 8 = 2
Dollars: 0 (after borrow) - 0 = 0
So: $0.22
5. $8.20 - $5.39
0 - 9 → borrow → 10 - 9 = 1
Tenths: 1 (after borrow) - 3 → can’t, borrow from 8 → 11 - 3 = 8
Dollars: 7 (after borrow) - 5 = 2
So: $2.81
6. $10.92 - $8.20
2 - 0 = 2
9 - 2 = 7
10 - 8 = 2
So: $2.72
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Third Row:
7. $10.53 - $10.00
Just subtract whole dollars and cents separately:
10 - 10 = 0
.53 - .00 = .53
So: $0.53
8. $5.25 - $3.75
5 - 5 = 0
2 - 7 → can’t, borrow from 5 → 12 - 7 = 5
Dollars: 4 (after borrow) - 3 = 1
So: $1.50
9. $6.84 - $3.92
4 - 2 = 2
8 - 9 → can’t, borrow from 6 → 18 - 9 = 9
Dollars: 5 (after borrow) - 3 = 2
So: $2.92
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Fourth Row:
10. $38.00 - $20.73
0 - 3 → borrow → 10 - 3 = 7
Tenths: 9 (after borrow) - 7 = 2
Dollars: 7 (after borrow from 8) - 0 = 7? Wait — let’s be careful.
Actually:
Write it as:
38.00
- 20.73
--------
Hundredths: 0 - 3 → borrow → 10 - 3 = 7
Tenths: 9 (since we borrowed) - 7 = 2
Units: 7 (we borrowed from 8, so 8 becomes 7) - 0 = 7
Tens: 3 - 2 = 1
So: $17.27
Let me double-check:
20.73 + 17.27 = 38.00 → yes, correct.
11. $10.50 - $8.97
0 - 7 → borrow → 10 - 7 = 3
Tenths: 4 (after borrow) - 9 → can’t, borrow from 10 → 14 - 9 = 5
Dollars: 9 (after borrow) - 8 = 1
So: $1.53
Check: 8.97 + 1.53 = 10.50 → correct.
12. $11.00 - $5.42
0 - 2 → borrow → 10 - 2 = 8
Tenths: 9 (after borrow) - 4 = 5
Dollars: 0 (after borrow from 1) - 5 → wait, need to borrow again.
Better way:
11.00
- 5.42
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Hundredths: 0 - 2 → borrow → 10 - 2 = 8
Tenths: 9 (borrowed) - 4 = 5
Units: 0 (because we borrowed from 1 in tens? Wait — 11.00 is 1 ten and 1 unit)
Actually:
Borrow for hundredths: 10 - 2 = 8
Then tenths: 9 - 4 = 5
Now units: 0 (because original 1 became 0 after lending to tenths?) — no.
Let's break down 11.00:
It’s 11 dollars and 00 cents.
To subtract 5.42:
Start at hundredths: 0 - 2 → borrow from tenths, but tenths is 0 → so borrow from units.
Units digit is 1 (in 11), so:
Borrow 1 from units → units become 0, tenths become 10.
But we need to borrow for hundredths, so now borrow 1 from tenths → tenths become 9, hundredths become 10.
Now:
Hundredths: 10 - 2 = 8
Tenths: 9 - 4 = 5
Units: 0 (was 1, lent 1) - 5 → can’t! So borrow from tens.
Tens digit is 1 → borrow 1 → tens become 0, units become 10.
Now units: 10 - 5 = 5
Tens: 0 - 0 = 0
So result: $5.58
Check: 5.42 + 5.58 = 11.00 → correct.
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Now let’s list all answers in order:
Row 1:
$0.96, $3.71, $2.10
Row 2:
$0.22, $2.81, $2.72
Row 3:
$0.53, $1.50, $2.92
Row 4:
$17.27, $1.53, $5.58
Final Answer:
$0.96, $3.71, $2.10, $0.22, $2.81, $2.72, $0.53, $1.50, $2.92, $17.27, $1.53, $5.58
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First Row:
1. $2.30 - $1.34
Think: 2.30 minus 1.34
Start from the right:
0 - 4 → can’t do, so borrow from 3 (tenths place).
10 - 4 = 6
Now tenths place: 2 (after borrowing) - 3 → can’t do, borrow from 2 (dollars).
12 - 3 = 9
Dollars: 1 (after borrowing) - 1 = 0
So: $0.96
2. $6.00 - $2.29
0 - 9 → borrow → 10 - 9 = 1
Tenths: 9 (after borrow) - 2 = 7
Dollars: 5 (after borrow) - 2 = 3
So: $3.71
3. $7.30 - $5.20
Easy!
0 - 0 = 0
3 - 2 = 1
7 - 5 = 2
So: $2.10
---
Second Row:
4. $1.09 - $0.87
9 - 7 = 2
0 - 8 → can’t, borrow from 1 → 10 - 8 = 2
Dollars: 0 (after borrow) - 0 = 0
So: $0.22
5. $8.20 - $5.39
0 - 9 → borrow → 10 - 9 = 1
Tenths: 1 (after borrow) - 3 → can’t, borrow from 8 → 11 - 3 = 8
Dollars: 7 (after borrow) - 5 = 2
So: $2.81
6. $10.92 - $8.20
2 - 0 = 2
9 - 2 = 7
10 - 8 = 2
So: $2.72
---
Third Row:
7. $10.53 - $10.00
Just subtract whole dollars and cents separately:
10 - 10 = 0
.53 - .00 = .53
So: $0.53
8. $5.25 - $3.75
5 - 5 = 0
2 - 7 → can’t, borrow from 5 → 12 - 7 = 5
Dollars: 4 (after borrow) - 3 = 1
So: $1.50
9. $6.84 - $3.92
4 - 2 = 2
8 - 9 → can’t, borrow from 6 → 18 - 9 = 9
Dollars: 5 (after borrow) - 3 = 2
So: $2.92
---
Fourth Row:
10. $38.00 - $20.73
0 - 3 → borrow → 10 - 3 = 7
Tenths: 9 (after borrow) - 7 = 2
Dollars: 7 (after borrow from 8) - 0 = 7? Wait — let’s be careful.
Actually:
Write it as:
38.00
- 20.73
--------
Hundredths: 0 - 3 → borrow → 10 - 3 = 7
Tenths: 9 (since we borrowed) - 7 = 2
Units: 7 (we borrowed from 8, so 8 becomes 7) - 0 = 7
Tens: 3 - 2 = 1
So: $17.27
Let me double-check:
20.73 + 17.27 = 38.00 → yes, correct.
11. $10.50 - $8.97
0 - 7 → borrow → 10 - 7 = 3
Tenths: 4 (after borrow) - 9 → can’t, borrow from 10 → 14 - 9 = 5
Dollars: 9 (after borrow) - 8 = 1
So: $1.53
Check: 8.97 + 1.53 = 10.50 → correct.
12. $11.00 - $5.42
0 - 2 → borrow → 10 - 2 = 8
Tenths: 9 (after borrow) - 4 = 5
Dollars: 0 (after borrow from 1) - 5 → wait, need to borrow again.
Better way:
11.00
- 5.42
-------
Hundredths: 0 - 2 → borrow → 10 - 2 = 8
Tenths: 9 (borrowed) - 4 = 5
Units: 0 (because we borrowed from 1 in tens? Wait — 11.00 is 1 ten and 1 unit)
Actually:
Borrow for hundredths: 10 - 2 = 8
Then tenths: 9 - 4 = 5
Now units: 0 (because original 1 became 0 after lending to tenths?) — no.
Let's break down 11.00:
It’s 11 dollars and 00 cents.
To subtract 5.42:
Start at hundredths: 0 - 2 → borrow from tenths, but tenths is 0 → so borrow from units.
Units digit is 1 (in 11), so:
Borrow 1 from units → units become 0, tenths become 10.
But we need to borrow for hundredths, so now borrow 1 from tenths → tenths become 9, hundredths become 10.
Now:
Hundredths: 10 - 2 = 8
Tenths: 9 - 4 = 5
Units: 0 (was 1, lent 1) - 5 → can’t! So borrow from tens.
Tens digit is 1 → borrow 1 → tens become 0, units become 10.
Now units: 10 - 5 = 5
Tens: 0 - 0 = 0
So result: $5.58
Check: 5.42 + 5.58 = 11.00 → correct.
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Now let’s list all answers in order:
Row 1:
$0.96, $3.71, $2.10
Row 2:
$0.22, $2.81, $2.72
Row 3:
$0.53, $1.50, $2.92
Row 4:
$17.27, $1.53, $5.58
Final Answer:
$0.96, $3.71, $2.10, $0.22, $2.81, $2.72, $0.53, $1.50, $2.92, $17.27, $1.53, $5.58
Parent Tip: Review the logic above to help your child master the concept of subtracting coins worksheet.