1. Adding and Subtracting Decimals 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. ADD ZEROES to TOP NUMBER ONLY….so that YOU MAY SUBTRACT. 3.4 - 2.76 ADD a ZERO to TOP NUMBER….. 3.40 - 2.76 SUBTRACT like normal problem

8. Practice Time