Answer Keys for Calvert Math

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1 Answer Keys for Calvert Math - Contents Math Textbook... Math Workbook... Math Manual...

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3 Answer Keys Math Textbook Math Textbook Answer Key. Multiplying Decimals.. $.. $ $ mg. mg orange, banana, apple $. billion, Japanese yen Sample answer: When adding decimals, line up the decimal points, attach zeroes if necessary, then add as with whole numbers. Bring the decimal down in the answer. When multiplying decimals, the number of decimal places in the product is the same as the sum of the number of decimal places in the factors.. Dividing Decimals $. $ $..,.. $. $.. $.. hits per game laps. and Sample answer: Josie had the better buy. To calculate the unit price for Josie, divide $. by, which gives $. per pound. To calculate the unit price for Jack, divide $. by., which gives $. per pound. Mid-Chapter Review.... $.. $. $ Cumulative Review $ $ < > > < > < = < > $,,,..,, $, $. about, yes $.. Scientific Notation ,.,,., Answers will vary. Sample answer: results in moving the decimal point four places to the right; - results in moving the decimal point four places to the left. Mind Builder: More Scientific Notation,,,,,,, Sample answer: You add the exponents to determine the power of. Sample answer: You subtract the exponents to determine the power of.. Metric Conversions,.., multiply divide multiply multiply..,,.,,, > < = cm;. m;, m, mg;. kg; kg. g. L the oak tree Sample answer: Joel ran farther because he traveled. km. Dana traveled, m or. km.. >., so. km is greater than, m. Test Prep c b Mind Builder: Mental Math,,,,

4 Math Textbook Answer Key Farmer Brown s Cabbage Patch Farmer Brown has this year and last year. Extension layers. Problem-Solving Strategy: Multi-Step Problems add, subtract subtract, multiply add, divide add, subtract Solve no $. $. $. add wins and losses. Pittsburgh a $. b $. c Sample answer: Five roses cost $., and lilies cost $., so the lilies are cheaper. Mixed Review Chapter Review Language and Concepts true false false true false true true Skills and > < =.,.,..,.,... $. $... $.... $...,.., ,.,..,, $.. seconds In Your Own Words The place value to the left is ten times greater, and the place value to the right to ten times less. Chapter Test false false true $.... $.. $.... $ ,..,,.. $. yes. g Change of Pace Sequences and Magic Squares subtract.; sum: add.; sum:. add.; sum:. add.; sum: Make sure the student s work matches the criteria. Cumulative Test d c d b d c d a a c Chapter. Prime Factorization composite prime composite

5 Math Textbook Answer Key n =, Sample answer: Dan s prime factorization is incorrect because four is not a prime number. Each of the fours can be factored as, so the correct answer is.. Greatest Common Factor Example:, Example:,, a y x,,,,,, Example: and Sample answer: The florist can make bouquets. Each bouquet has carnations, roses and lilies. I found the GCF of the groups of flowers and then divided each type of flower by the GCF to find the number of flowers in each bouquet. Sample answer: False; and are both composite, but they only have one as a common factor. Mind Builder: Perfect Numbers Perfect:, Abundant:,,,, Deficient:,,,,,,,,,,,,,,,,,,,,,. Least Common Multiple,, Numbers GCF LCM GCF LCM,,,,, Sample answer: It is the same as the product of the original given numbers. Example: and Sample answer: The LCM of two relatively prime numbers is the product of those two numbers. For example, and are relatively prime numbers. The LCM of and is, and =. February Test Prep c d. Fractions and Decimals Fraction Decimal / / / / / > = > > = = > < ;. ;. ; ;. /. The Million-Dollar Giveaway The sum is /; less than one million dollars Extension The sum is /; less than one million dollars Cumulative Review > < = < > < $. $... $..... $... Solve $. yes $. sandwiches. Percents and Decimals.. %.% % % % % % %.%.%.%.%.% %.... %

6 Math Textbook Answer Key Sample answer: More; % of $ is $, so %, which is more than %, would have to be more than $. $. = $,.. Fractions and Percents % % % % %.% / / / / / / / / / / / / % % % % % % % /% /% % /% /% % % to, %, / /; /; %; / Mid-Chapter Review GCF =, LCM = GCF =, LCM = GCF =, LCM = GCF =, LCM =., % /%., /%., /%. Comparing and Ordering Rational Numbers > > > < = > > > < < > < = < < > > > < = /, /, /, / -/, %, /, / -., -/, %, / / mile race, /, /, /, /, / yes Note: There are several answers for each of the following. Only examples are given. Examples: a /; b /; c /; d / Mind Builder: Latin See student s work. Possible answers: denominatore (denominator) names the number of parts something is broken into; numeratore (numerator) refers to the number of parts you have; frangere (fraction) refers to how a whole is broken apart.. Problem-Solving Strategy: Guess and Check adult ticket $., student ticket $. adult tickets, child s ticket Solve and and $. Mae is.,,, quarters, dimes, nickels / lb. Granny Smith, / lb. Macintosh Mixed Review Chapter Review Language and Concepts hundredth number divisor GCF terminating Skills and.... / / / / > > = =.... % %.% % / / / / % /% % % > < = < and children s tickets and adult tickets Chapter Test..... / / / / / % % /% % % > < = <..... % % % % % nickels and dimes Change of Pace More Factor Patterns, See chart. Exactly Exactly Exactly Exactly Exactly Exactly Exactly Exactly Sixteen is the only number that has exactly factors from numbers. Sample answer: As the number becomes greater, there are more possibilities for a greater number of factors. Also, the trend shows the factors run in even-numbered pairs.

7 Math Workbook Answer Key Answer Keys Math Workbook Practice Multiplying Decimals $. $.... $ $. $... $. $. Practice Dividing Decimals $.. min or. sec nickels hours... $.. $, Practice Scientific Notation,.,, ,, =.. Practice Metric Conversions,,,,.,.,.. > > > > > >, mg,. kg, g. m,, mm, cm. g about glasses a. g b g,. kg c grams a gram, used to measure light items, about the weight of an aspirin b large bottle: liter, used to measure larger quantities of liquid; small bottle: milliliters, used to measure smaller quantities of liquid c centimeter, used to measure the length of small items Review Chapter Review > = < >....,.,..,.,.. $... $ ,,.,,,. $. lines,. =.,. +. = $.. L of chocolate Test Chapter Test Prep c d c a b d b d.. Chapter Practice Prime Factorization Practice Problem-Solving Strategy: Solving Multi-Step Problems $. $. $. $. Sam needs a score of. lawns. mi pancakes,,,

8 Math Workbook Answer Key Practice Fractions and Decimals / / / / / / / / / / / / > > > > > = > > Fraction: / / / / / / / / / / Decimal: thriller, drama, comedy, action a Michael b $. c $. No, because is not a prime number. The prime factors of are. n =,,, Practice Greatest Common Factor ; The numbers should be circled. ; The numbers should be circled. ; The numbers should be circled. Enrichment Euclidean Algorithm Practice Least Common Multiple GCF =, LCM =, GCF LCM = GCF =, LCM =, GCF LCM = GCF =, LCM =, GCF LCM = Example:,.... Practice Percents and Decimals % % % % /% /% % % % % % % % /% % % - - Practice Fractions and Percents / / / / / / / / / / / / / / % % % % /% /% % % /% /% % % % /% % % /% % % % < > > % % Jake Practice Comparing and Ordering Rational Numbers > < > = < < = < > > < < %, /, /,.., /, /, / /,., /, % /, /, %,. %, /,., /, / No, % =. and. = %. -/ / / / / / Practice Problem-Solving Strategy: Guess and Check sandwiches and chips twenty-cent stamps and -cent stamps girls,, quarters,

9 Math Workbook Answer Key nickels Adam picked boxes; Kim picked. quarters, dimes, nickels Review Chapter Review..... / / / / / < < < <.... %.% % % / / / / % /% /% /% /% Test b d c a c b d c....

10 Math Manual Answer Key Answer Keys Math Manual LESSON LESSON,,,,, LESSON,,,, LESSON prime composite prime prime composite LESSON LESSON LESSON /,. /,. /,;.