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Adding and Subtracting Decimals

Adding and Subtracting Decimals. 6 NS 3 Solve problems involving addition and subtraction of decimals. To add decimals. Line up the decimal points and add the columns from right to left. Place a decimal point in the answer directly below the other decimal points. Example 1. 0.64 + 0.39

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Adding and Subtracting Decimals

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  1. Adding and Subtracting Decimals 6 NS 3 Solve problems involving addition and subtraction of decimals.

  2. To add decimals • Line up the decimal points and add the columns from right to left. • Place a decimal point in the answer directly below the other decimal points.

  3. Example 1 0.64 + 0.39 Line up the decimal points. 0.64 + 0.39 __________________________ Add the columns. 0.64 + 0.39 __________________________ 1.03

  4. Example 2 5.74 + 3.3 Line up the decimal points. 5.74 + 3.3 _____________________________ Add the columns. 5.74 + 3.3 _____________________________ 9.04

  5. To subtract decimals • Line up the decimal points. • Subtract the columns from right to left, regrouping if necessary. • Place a decimal point in the answer directly below the other decimal points.

  6. Example 1 0.86 – 0.49 Line up the decimal points 0.86 - 0.49 __________________________ Regroup the tenths. Subtract the columns. 0.86 - 0.49 __________________________ 16 7 0.37

  7. Practice Time

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