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Unformatted text preview: 7 by 11, then the result is 4.27272727… = 4.(27) Operations with decimal fractions Addition and subtraction of decimals. These operations are executed as well as an addition and a subtraction of whole numbers. It is only necessary to write the corresponding decimal places one under another. Example. Math I - 12 - Feel free to pass this on to your friends, but please don’t post it online. Discuss UPCAT and other college entrance exam questions and answers at Academic-Clinic’s Facebook Page. We encourage you to answer the questions we post there and actively participate in the discussions on our wall. For UPCAT, ACET, DLSUCET and USTET tips, tricks, news and other college entrance exam information, visit the Academic-Clinic website. Tell your friends and classmates to come find and join us. The more, the merrier. Good luck! AcademicAcademic Academic-Clinic.com The achiever’s guide to academic life and beyond… W ebsite: http://academic-clinic.com Facebook: http://www.facebook.com/academic.clinic Twitter: http://twitter.com/acadclinic College entrance exam and science high school entrance test tips. Conquer UPCAT, ACET, USTET, DLSUCET, PSHS-NCE, and other entrance tests. Multiplication of decimals. At first stage let’s multiply the fractions as integers, not taking a decimal point into consideration. After this we use the following rule: a number of decimal places in a product is equal to a sum of numbers of decimal places in all factors. Note: before putting the decimal point in the product it is prohibited to reject zeros in the end of it ! Example. A sum of numbers of decimal places in factors is equal: 3 + 4 = 7. A sum of digits in the product is 6. Therefore, it is necessary to add one zero to the left: 0197056 and to put before this a decimal point: 0.0197056. Division of decimals. Division of decimal fraction by integer. If a dividend is less than a divisor, write zero in an integer part of a quotient and put after it a decimal point. Then, not taking...
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