Review of Introductory Mathematics DECIMALSExample:0.056 x 0.032 =Solution:0.0560.0321121680.001792NOTE: Since 0.056 has three digits to the right of the decimal point, and 0.032 has threedigits to the right of the decimal point, six digits must be to the right of thedecimal point in the product. To have six digits in the product, zeros are insertedto the left of the computed digits.To multiply a decimal by 10, move the decimal point one position to the right.Example: 0.45 x 10 = 4.5. Similarly, when multiplying a decimal by 100, 1000, and 10,000,move the decimal point to the right the same number of zeros that are in themultiplier.Example:0.45 x 100 = 450.45 x 1000 = 4500.45 x 10,000 = 4500The reverse is true when multiplying by fractions of 10.0.45 x 0.1 = 0.0450.45 x 0.01 = 0.00450.45 x 0.001 = 0.000450.45 x 0.0001 = 0.000045DividingDecimalsWhen solving problems involving division of decimals, the following procedure should beapplied.Step 1: Write out the division problem.Step 2: Move the decimal in the divisor to the right.Rev. 0 Page 43 MA-01
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