subtracting-decimals-mathhelpcom-math-help

# Interactive video lesson plan for: Subtracting Decimals - MathHelp.com - Math Help

#### Activity overview:

For a complete lesson on subtracting decimals, go to http://www.MathHelp.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn to subtract decimals by first lining up the decimal points, then subtracting the numbers by column. For example, to subtract 9.514 -- 1.6, first line up the decimal points, then subtract the digits the thousandths column, to get 4 - 0, or 4, then subtract the digits in the hundredths column, to get 1 -- 0, or 1, then subtract the digits in units column, by borrowing a 1 from the 9 in the units column (which leaves an 8 in the units column), to get 15 -- 6, or 9, then subtract the digits in the units column, to get 8 -- 1, or 7. So 9.514 -- 1.6 = 7.914.

Tagged under: subtracting,decimals,decimal,subtraction,subtract,pre,algebra

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