Student Solutions - Math-U-See

1 Lesson Practice 1a - s YsteMatic reVieW 1c155aLGeBra 1 Lesson Practice () ()= () ()=+=+.11414599545=() = truecommutativeproperty6. =() = = ==+()+=+++()=+=981182171919 + trueassociative property() () = () = = () () = ( )) = ()=()=7211259933933339119 false12. ;#;#;79sseeand ##610 Lesson Practice ()+ ()= () +()=31013310 ()+ ()= () ()=()++()= () ( ))= ()++()= + +=+ += ++ += ++=++ ++ =+++ = ++ +++ +++ += ++ += +209526851122222 XXXYYXYXXXXXX9.++=+ + =+ = + =+ = ()+ ()= () +()=31013310 ()+ ()= () ()=()++()= () ( ))= ()++()= + +=+ += ++ += ++=++ ++ =+++ = ++ +++ +++ += ++ += +209526851122222 XXXYYXYXXXXXX9.++=+ + =+ = + =+ = 31085106381598185912.++= += ; see 1A #12eefalse;; see 1A #6 see 1A # Review + = + = + +MMMMMABCABCAA += + += + ++= +++= + + = + =+ + =+ = += += + + + += + +++= + ++=++ ()()= () ( ))= ()= ()= () ()=+ ()= = = ()= = Student Solutions 53 534 4Q Q53Q53 53Q53 CCQ CCQQ Q+ + 53+ 53 53+ 53 CCQ+ CCQ CCQ+ CCQ++ ++CCQ++CCQ CCQ++CCQ7.

2 7. = = = = = = + ++ + ++ ++5 5 =5 = =5 =54 54++54++ ++54++35 35+ 35+ + 35+ 31 31 +31 + +31 +20 2056 56+ 56+ + 56+ 29 29+ 29+ + 29+ C C =C = =C =QQ QQ54QQ54 54QQ54++54++QQ++54++ ++54++QQ++54++QC QC+ QC+ + QC+ 35QC35 35QC35+ 35+ QC+ 35+ + 35+ QC+ 35+ CC CC =CC = =CC =35CC35 35CC35 =35 =CC =35 = =35 =CC =35 =CQ CQ31CQ31 31CQ31 +31 +CQ +31 + +31 +CQ +31 +XY XY56XY56 56XY56+ 56+ XY+ 56+ + 56+ XY+ 56+ YX YX++YX++ ++YX++29YX29 29YX2929X29 29X29+ 29+ X+ 29+ + 29+ X+ 29+ 8. === + + + ++= +=20 2095 95 +95 + +95 +26 26++26++ ++26++851 85122 222 2+=2+= +=2+=XX XX++XX++ ++XX++26XX26 26XX26++26++XX++26++ ++26++XX++26++XY XY +XY + +XY +26XY26 26XY26 +26 +XY +26 + +26 +XY +26 +YX YX= YX= = YX= 851YX851 851YX851= 851= YX= 851= = 851= YX= 851= XX XX+ XX+ + XX+ 22XX22 22XX22+ 22+ XX+ 22+ + 22+ XX+ 22+ X X+=X+= +=X+=9. Solutions Student Solutions aLGeBra 1sYsteMatic r e VieW 1 c - s YsteMatic reVieW 1 DsoLutions15600156144510791034678=+ += + +++= + ++=++ ()()= () ( ))= ()= ()= () ()=+ ()= = = ()= = ====336110536233362111213451354512712=== = = 2247152187152718105362333621112== === Systematic Review ++ =+ ()+ +()=++XXYYXYXXXYYYX +=+ ()+ +()= 681110185116810124444167184164718203 YABABAABBA3.

3 +++=+()+ +()+=+BBXXXXXKK+ ++ = +()+ ()= + +=+ ()+ ()= + =6. ()+ +()= = ()39366138212132 CCDDCDAZAZAA7.++ ()= ++ = + ()+ +()=+ ()= () ()= = ()() ()= () ()=+ () ()= ()++()= = === = ()39366138212132 CCDDCDAZAZAA7.++ ()= ++ = + ()+ +()=+ ()= () ()= = ()() ()= () ()=+ () ()= ()++()= = == 3355685635843858175871358438282 === == \11427227422213723748224212/\/\/\/\/\/ \\/\/\/\/\262322223100250225552255 1sYsteMatic r e VieW 1D - s YsteM atic reVieW 1esoLutions157/\114272274222137237482242 12/\/\/\/\/\/\\/\/\/\/\26232222310025022 5552255 Review +()+=++()+())+=++()+=+=() 3381938132734343336()() () = = =.. ==== =11628242222225422739332333/\/\/\/\/\/\ \/\/\/\/\/\ = =.. ==== =11628242222225422739332333/\/\/\/\/\/\ \/\/\/\/\/\ //\332233243621231223102 = = == =5 is GCF 15 is 8 is =aLGeBra 1 Lesson Practice 2a - Lesson Practice 2 BsoLutions158 Lesson Practice += LCM is 8== ===+=2530310930163081523101545121 LCM is += +=+=LCM is = = = = =419916191441912568236822882226.

4 == + = + =+ = = 225695645651383338922 += +=+= ()++()= () ()++9.(()=+=+ =+ =+ = = +++=+()+ +()+=++ 66536180180182188262638962322= ==+=+== = = = == += LCM is 8== ===+=2530310930163081523101545121 LCM is += +=+=LCM is = = = = =419916191441912568236822882226. == + = + =+ = = 225695645651383338922 += +=+= ()++()= () ()++9.(()=+=+ =+ =+ = = +++=+()+ +()+=++ 66536180180182188262638962322= ==+=+== = = = == Practice = = LCM == = = == = = = += ()+= += = () = = 22499249454451825111822512= ()= = + = ()+ .. + = += ()+=+= (()++()=++()=+=+ =222394259162525509481238110. ++() =+ = +()= +()481227814275849844922222 +=+= ()+= ()+169474113515318355122322312. 889251251816125181612518911052= += += += + += + +=+ =+= + 14. ()= + ()= + ()=+ 15183632515182215182215222(()=+=+= () = = = = = LCM == = = == = = = += ()+= += = () = = 22499249454451825111822512= ()= = + = ()+.))))

5 + = += ()+=+= (()++()=++()=+=+ =222394259162525509481238110. ++() =+ = +()= +()481227814275849844922222 +=+= ()+= ()+169474113515318355122322312. 889251251816125181612518911052= += += += + += + +=+ =+= + 14. ()= + ()= + ()=+ 15183632515182215182215222(()=+=+= () = = =aLGeBra 1sYsteMatic r e VieW 2 c - s YsteMatic reVieW 2 DsoLutions159 Systematic Review 2C += ()+=+= 558225429122341445472047162+=+= +() = () = = = () = = = =+ =+ = ()+=+=+= () ++= += +=+= = = /\/\/\/\/\22222813273933333332482163 = \/\/\1162324222336223322== = = 16 is GCFLCM14.; ===== == == = because 1/10 1/10 = 1/100 see note for #17() =() =() see note for #17or: 3326273 two decimal places in \/\/\/\/\22222813273933333332482163 = = = 16 is GCFLCM14.; ===== == == = because 1/10 1/10 = 1/100 see note for #17() =() =() see note for #17or: 3326273 two decimal places in answer.))

6 () =Systematic Review 2 DLessonPractice2D1. + () = +() = 473216421222661622410356824730428304+ = () ()+=() += +=2. () ()+= ()+= ++= AABABABABAABB ()+ = +()+ = +()+ ()=+=01142325. 11214231214233631281237112301112534 +=+=+== + + ()= + + ()=+ = + ( 7.))= ()+ () ()= +=()=()2255552525099381938. === ==+=93325784715524209693227964791121 is () = () = =ees, see # () () nno, see # ===aLGeBra 1sYsteMatic r e VieW 2D - s YsteMatic reVieW 2esoLutions160=== ==+= is () = () = =ees, see # () () nno, see # ===22747484938330618050 = 4482018201855252505 .. ==+= is () = () = =ees, see # () () nno, see # ===22747484938330618050 = 4482018201855252505 .. ==+= is () = () = =ees, see # () () nno, see # ===22747484938330618050 = 4482018201855252505.

7 ==+= is () = () = =ees, see # () () nno, see # ===22747484938330618050 = 4482018201855252505 .. Review + += + += 328738849465326633031010392013920122()== +() = = []==++ =+()+ ()= () = () = =++=+ 5531645316259321928467222+= ()+() =+ =() = = = == + += + += 328738849465326633031010392013920122()== +() = = []==++ =+()+ ()= () = () = =++=+ 5531645316259321928467222+= ()+() =+ =() = = = == += + =+=1112591=Cross multiplication always yields a corrrect answer for additionof fractions. In some cases, you will have to reduce after findingthhe is ==== = =10101010100 LCMLCM may also be found using prime factorsy()++=+++=+= ; see # === method may be used for dividing fractions = 1121512561531115004400161634 == groups of $.40 24 121624614412.$..aLGeBra 1sYsteMatic r e VieW 2 e - Lesson Practice 3asoLutions161 = 1121512561531115004400161634 == groups of $.

8 40 24 121624614412.$.. personLesson Practice 3 ALessonPractice3A1. ++ =+ +()+ 5384931583 AAAA441131111131()=+ ()=++=AA22454384493120332493A= ()++() =+ ++ =+ Check:111111= ++=+= Check:663666366746431867BB==() ()++()= ++22443434346731743173== +++= =+ +== 344204545 Check:YY(() +()++()= +++==+ +=+()+ =++==QQQQCC heck:5232622239106645914()+() +()=+()++ +=+=+== 344204545 Check:YY(() +()++()= +++==+ +=+()+ =++==QQQQCC heck:5232622239106645914()+() +()=+()++ +=+= + += =++=KK=() +() ()+= + +=354332122185123224 Check:6322424= + = + =++= ==() () + ()= + + =727877341351487712 Check:57++=+=+ = == :433()+=()++=+= +=+ ==() ()+=()+Check:106 +=+= += + =+ () +()=() ()+ +CCheck:== += = += += 351012373761023462341088aLGeBra 1 Lesson Practice 3a - Lesson Practice 3 BsoLutions162++=+= +=+ 62312126612181810235218 BBBB55213331836263562160 BBB= ==() ()+=()+Check:106 +=+= += + =+ () +()=() ()+ +CCheck.))

9 == += = += += () = () = Check:== 2811. ++=+= =33610510210228 AAAAAC heck: () ()+()+= ++==3836810851024348805101010122. ++ = =++=541077114377334480 BBBBB44205202041020771110020B= () ()++() = Check:+++ == + += = + ()+() +()= Check:8884360100793937865357228+ += = + += += = = ()+ +222262373865 QQCheck: ()= + = =335721861515788 RRRR88896812412712351210742RR== ()+() +()= Check:8884360100793937865357228+ += = + += += = = ()+ +222262373865 QQCheck: ()= + = =335721861515788 Lesson Practice 3B1. + += =++==354621931119111133303 AAAAAA11031054106210193054062 Check: () +() +()= + +001919198653341109419== + = =++ () +() ()= Check:++ == + ++= += = = + 77996923523362 YYCheck:332234131033123434131837 + +=++ +=+=11367131313874374104347+== + =+ += ==()()()QQCheck:aLGeBra 1 Lesson Practice 3B - Lesson Practice 3 BsoLutions163++ == + ++= += = = + 77996923523362 YYCheck:332234131033123434131837 + +=++ +=+=11367131313874374104347+== + =+ += ==() ()+ ()=+QQCheck: + == += =++===() () +()= +=888486358816432634062 Check:33636374585443293342= + +=+ =++ () ()+ +()=+ + CCheck:++=+= =++ =+= () () =()+()+ Check: ==++= += = = + = =() 468446101212361232310 BBBBC heck:331558340436630155244012634() +=() () += == ++=+= =++ =+=85429291141821073101844 AAAAAAA22847117471827710772818A=() () =()+()+ Check.

10 ==++= += = = + = =() 468446101212361232310 BBBBC heck:331558340436630155244012634() +=() () += == += + =+ =+ = == () + ()= () ()+ = 4346241042461268 Check:44086262628532638563++ = = + = + ++=+==() ()= () ()568221427278573727 DDDC heck: ++ = + = + += =++==() +() 313233991359158156315215 Check:(()+= + +==+++= ++ ++=+ = = ()+ ()5293641461443888 BBBBBBC heck:++ ()+= ()+ ()+ += +++ = 866852892464851691818113. += + += = 21226612212818281812 CCCCCCC110103010323122366312CC = = ()+=() +() Check: += + =61266181266aLGeBra 1 Lesson Practice 3B - s YsteMatic reVieW 3csoLutions164++ ++=+ = = ()+ ()5293641461443888 BBBBBBC heck:++ ()+= ()+ ()+ += +++ = 866852892464851691818113. += + += = 21226612212818281812 CCCCCCC110103010323122366312CC = = ()+=() +() Check: += + = + =+ =++== Checck:104349345131401293417118() () + ()=+ + =+ ==18 Systematic Review +=+ = =+=3933936610 XXXXXXXQ+ = =+=+ = == +=+==+=++ =+ + = +==+=++ = + =+ = +=+= + =75322322222436437.)