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Add and Subtract

Add and Subtract. Negative Decimals. Add and Subtract Decimals. 0.6 – (- 0.34). Step 1: Use shortcuts for negatives. 0. 0.6 + 0.34. Step 2: Line up the decimals. Step 3: If needed, put zeros in as place holders. 4. 0. 9. Step 4: Add decimals. Step 5: Bring decimal down.

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Add and Subtract

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  1. Add and Subtract Negative Decimals

  2. Add and Subtract Decimals 0.6 – (- 0.34) Step 1: Use shortcuts for negatives. 0 0.6 + 0.34 Step 2: Line up the decimals Step 3: If needed, put zeros in as place holders . 4 0 9 Step 4: Add decimals Step 5: Bring decimal down

  3. Add and Subtract Decimals The signs are same so take the SUM! -4.38 + -0.9213 1 Step 1: Use shortcuts for negatives. 1 00 4.38 + 0.9213 Step 2: Line up the decimals 1 Step 3: If needed, put zeros in as place holders . 5 3 0 3 The answer is NEGATIVE– + – = – Step 4: Add decimals Step 5: Bring decimal down Step 6: Determine the sign of the answer -5.3013

  4. Add and Subtract Decimals The signs are different so take the DIFFERENCE! – 0.67 + 0.53 Step 1: Line up the decimals 0.67 – 0.53 Step 2: If needed, put zeros in as place holders . - 0 1 4 Step 3: Subtract decimals The answer is negative because you started with MORE NEGATIVES! Step 4: Bring decimal down Step 5: Determine the sign of the answer

  5. Add and Subtract Decimals The signs are different so take the DIFFERENCE! -5.39 + 1.231 8 Step 1: Line up the decimals 1 5.39 – 1.231 0 Step 2: If needed, put zeros in as place holders . - 4 1 5 9 Step 3: Subtract decimals The answer is negative because you started with MORE NEGATIVES! Step 4: Bring decimal down Step 5: Determine the sign of the answer

  6. Add and Subtract Decimals Try the following problem on your own! -6.27 + -0.8534 The signs are the same so take the SUM! 1 1 00 6.27 + 0.8534 The answer is negative– + – = – . 7 1 2 3 4 -7.1234

  7. Add and Subtract Decimals Try the following problem on your own! -8.27 + 5.342 The signs are different so take the DIFFERENCE! 6 7 1 1 8.27 – 5.342 0 The answer is negative because you started with MORE NEGATIVES! 2 . 9 2 8 -2.928

  8. Add and Subtract Decimals THAT’S ALL FOLKS! • Take out your study guide!!! The End!

  9. Negative Decimals #4 -8.27 + 5.342 -6.27 + -0.8534 The signs are the same so take the SUM! The signs are different so take the DIFFERENCE! 6 7 1 1 1 1 0 00 8.27 – 5.342 6.27 + 0.8534 . 2 . 9 2 8 7 1 2 3 4 The answer is negative because you started with MORE NEGATIVES! The answer is NEGATIVE – + – = – -7.1234 -2.928

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