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Question

Difficulty: EasyDecimal Operations

A plumber has a copper pipe that is 14.514.5 inches long. She cuts off a piece that is 3.753.75 inches long. What is the length of the remaining pipe in inches?

Answer: 10.75 inches

Answer

10.75
Subtracting the cut piece (3.753.75 inches) from the total length (14.514.5 inches) gives the remaining length. Aligning the decimals properly as 14.50−3.7514.50 - 3.75 results in exactly 10.7510.75.

Step-by-Step Solution

1
Identify the operation needed
Subtraction: 14.5−3.7514.5 - 3.75
Cutting a piece off means reducing the total length of the pipe.
2
Align the decimals for subtraction
14.50−3.7514.50 - 3.75
To subtract decimals correctly, align the place values by lining up the decimal points. Add a placeholder zero to 14.514.5 to make it 14.5014.50.
3
Perform the subtraction
10.7510.75
Subtracting 3.753.75 from 14.5014.50 yields 10.7510.75.

Key Concept

Decimal Subtraction and Alignment
Estimated Time:45s
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Topics

Decimal Operations

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