 # Decimal Review. Adding decimals 8.12 + 14 + 32.9 Rules 8.12 14 + 32.9 8.12 14 +32.9 1. Line up the decimal points Whole numbers have a decimal point at.

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Decimal Review

Adding decimals 8.12 + 14 + 32.9 Rules 8.12 14 + 32.9 8.12 14 +32.9 1. Line up the decimal points Whole numbers have a decimal point at the far right. 2. Place a decimal point to the far right of whole numbers and add zeros as needed.00 3. Fill in any empty spaces with zeros 0 4. Add 55.02 EX1)

Subtracting decimals 84 – 16.47 Rules 84 - 16.47 84 - 16.47 1.Line up the decimal points Whole numbers have a decimal to the far right 2. Place a decimal point at the right and add zeros as needed for whole numbers.00 3. Fill in any empty spaces with zeros 4. Subtract 67.53 EX 2)

Multiplying decimals 27 X 8.29 Rules 27.00 X 8.29 27 1. DO NOT line up the decimal points 2. Place the longest looking digit on the top Makes multiplication easier 5 8 0 3 3. Multiply 4. Count your decimal point in problem Line up numbers 1 6 5 8 0 2 2 3 8 3 EX 3) 8.29 X 2 5. Count the same number of decimal points in answer

8 1 2 2 Dividing decimals 81.2 ÷ 0.4 Rules 1. Divisor dividend The dividend is always divided by the divisor 2. You must make the divisor a whole number if it is a decimal 3. If the decimal moved in the divisor, then the decimal on the dividend must move the same amount 5. Divide Dividend divisor 0 4 2 -8 1 0 2 3 -1 2 4. Bring your decimal up into your answer 02 0 0 0 2 0 5 EX 4)

Essential Question How is the process of adding decimals different with the process of multiplying decimals?

Decimal Review Date __________________

Adding decimals Rules 1. _________the decimal points Whole numbers have a decimal point at the far right. 2. Place a decimal point to the far right of whole numbers and add zeros as needed 3. Fill in any empty spaces with zeros 4. Add or subtract EX1)

Subtracting decimals EX 2)

Multiplying decimals Rules 1. _______ line up the decimal points 2. Place the longest looking digit on the top Makes multiplication easier 3. ________ 4. ______ your decimal point in _______ Line up _______ EX 3) 5. Count the _____ number of decimal points in ______

Dividing decimals Rules 1. The dividend is always divided by the divisor 2. You must make the divisor a _____ number if it is a decimal 3. If the decimal moved in the divisor, then the decimal on the dividend must move the _____ amount 5. 4. Bring your decimal __ into your answer EX 4)

Essential Question How is the process of adding decimals different with the process of multiplying decimals?

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