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Adding and Subtracting Decimals
The overnight delivery service is scurrying around to get their packages to all of the stores in the city before sunrise. As they drive, they rap and sing about adding and subtracting the decimal values of their various packages. The...
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Subtracting Decimals (Old)
This video demonstrates how to subtract decimals. Practice problems are available. [8:31]
Math Mammoth
Math Mammoth: Add and Subtract Decimals Mentally (With Up to 3 Decimal Digits)
A lesson in how to add and subtract decimals to the thousandths place using mental math. [10:40]
Virtual Nerd
Virtual Nerd: How Do You Subtract Decimals?
Video tutorial explains how to subtract decimals by hand. [1:31]
Math TV
Math tv.com: Basic Mathematics: Decimals: Addition and Subtraction
Math students offer step-by-step solutions to problems involving decimal addition and subtraction. In the left hand menu, click on Basic Mathematics, Decimals, Addition and Subtraction.
Khan Academy
Khan Academy: More Advanced Subtraction Strategies With Hundredths
Sal uses place value and numbers in expanded form to subtract decimal to hundredths, such as 8.38-4.54. [5:01]
Khan Academy
Khan Academy: Subtracting Decimals: 9.005 3.6
Just like when add, be sure you align decimals before subtracting. Created by Sal Khan, Monterey Institute for Technology and Education. [2:08]
Khan Academy
Khan Academy: Strategies for Subtracting More Complex Decimals With Tenths
Sal uses place value and decomposing numbers to subtract decimals to the tenths place, such as 2-1.2. [8:45]
Khan Academy
Khan Academy: Strategies for Subtracting More Complex Decimals With Tenths
Sal uses place value and decomposing numbers to subtract decimals to the tenths place, such as 2-1.2.
Khan Academy
Khan Academy: Strategies for Subtracting Basic Decimals
Sal uses place value and a number line to subtract decimals, such as 1.5-0.7.
Khan Academy
Khan Academy: Estimating Decimal Subtraction
Estimate to find reasonable solutions to addition subtraction problems.
Khan Academy
Khan Academy: Subtraction Strategies With Hundredths
Sal uses place value and decomposing numbers to subtract decimals, such as 65.79-42.58.
Khan Academy
Khan Academy: Subtracting Decimals: 9.57 8.09
Sal subtracts 9.57-8.09 using 'standard algorithm'.
Khan Academy
Khan Academy: More Advanced Subtraction Strategies With Hundredths
Sal uses place value and numbers in expanded form to subtract decimal to hundredths, such as 8.38-4.54.
Khan Academy
Khan Academy: Subtracting Decimals: 10.1 3.93
Sal subtracts 10.1-3.93 using 'standard algorithm'.
Khan Academy
Khan Academy: Subtracting Decimals: 39.1 0.794
Demonstrates how to subtract decimals up to the thousandths place using the example of 39.1 - 0.794. [2:06]
Khan Academy
Khan Academy: Subtracting Decimals: 9.57 8.09
Demonstrates how to use the standard algorithm to subtract decimal numbers in the example of 9.57 - 8.09. [1:11]
Khan Academy
Khan Academy: Subtracting Decimals: 10.1 3.93
Demonstrates how to use the standard algorithm to subtract decimal numbers in the example of 10.1 - 3.93. [1:53]