     !"#$ !"% MÔN TOÁN LỚP 6 &'(')*+,-,'.!/01234*(351&'(')*(')6789 Câu 1. (3 điểm) :';*/</1=* )) > ". − + -) ? "  % %− ) ? @A 2 9  "% "A ". A " @2!B%9 " " "% C! # + − Câu 2.(2 điểm) )9DEB-'F1 A %E %G # + = -9H*(1IJK*( " n n + + +,/L*MN1N'('O* 2 9n N∈ Câu 3. (2 điểm) PQ';/R)S"!1J';T7U*(1V'W1*(L*,*(1X6151HYZ3[V*" 1Q*(\R]'+^'MT_1!B?GW11Q*(21'8*+^'`'1Q*(-K*(!B?GMN1'8*R)S-)*7aT R,M)T" 1Q*(]'1JO9@I'F11&'V*" 1Q*(_SB-Q';//O'1JOORN*+b* +^'+,-)6*'cTd Câu 4. (2 điểm) Jc*e*(W1*f)g1/h*(-&H)1')6EBRi1')61B6SM)66(ZE6S+, (ZRT4*(R, ¶ ! #%xot = )9 ')61Z*K('j))'1')6ER,6S34*(d -9 ')61Z+,1')/L*('Qk)(ZE6S34*(dlDM)6d Câu 5. (1 điểm) 61)('QPB7'5*K('j)R,B7'5m*K('j)R,P@Q 76V*1h*(PR,mn1*)To@N'm@=*EXZ-)6*'cT1)('Q1J6*( D*Rid ppppppppppppppppppppppppppqpppppppppppppppppppppppppp ĐỀ CHÍNH THỨC HƯỚNG DẪN CHẤM TOÁN 6 HỌC KỲ II NĂM HỌC 2014 – 2015 Câu N,i dung Điểm Câu 1 (3đ) )9 > ". − + r > ". − + r " rC !B% !B % !B % -9 ? "  % %− r ? % @ % " − r ?@2 %9 %@" − r "! A − !B% !B % !B % 9 ? @A 2 9  "% "A ". A " @2!B%9 " " "% C! # + − = @A  ? " ? >. #> @ "% # "% C! #   −  ÷   − = > #> # @ % C! #> − = " > % % =− !B% !B % !B % Câu 2 (2đ) )9 A %E %G # + = " A %E # # = − " %E − = % " E − = " E "! − = !B % !B % !B % !B % -9 6's+,t]T*(k)*u"R,*u @)Z B "n d n d⇒ + +M M 2 9 2 "9 "n n d⇒ + − + = M lvSsr"*c**u"R,*u *(TSc*1Ne*(*)T@67Z " n n + + +, /L*MN1N'('O* 2 9n N∈  !B % !B % !B % !B % Câu 3 (2đ) wN1'8*+^'1J6*(" 1Q*(+,"!!!!!!!@!B?G@" r.C!!!!7 " wN1'8*/O'1JO"!!!!!!!u.C!!!!r"!.C!!!!7 " Câu 4 (2đ) pliD*=*EQ )9')x1*K('j))'1')xER,xSRD · · ! ! 2#% .! 9xOt xOy< < !B% !B% -9 lD1')x1*K('j))'1')xER,xS*c* ¶ ¶ ¶ ! .!xot toy xoy+ = = ¶ ¶ ! ! ! ! .! .! #% #%toy xot⇒ = − = − = ¶ ¶ ! #%xot toy⇒ = = ⇒ 61+,1')/L*('Qk)(ZE6S@ !B % !B % !B % !B % Câu 4 (1đ) liD*70*( Z%1)('QY7y*\BZ#1)('QY74'\B Z 1)('QY-)\BZ"1)('QY*\@ _1OZ" 1)('Q  !B% !B% * Chú ý:M'*ZQ('O'3Q*FT70*(67'51z*(/a*1ty*(7ty*(@ . 1Q*(_SB-Q';//O'1JOORN*+b* +^'+,- )6 *'cTd Câu 4. (2 điểm) Jc*e*(W1*f)g1/h*(-&H)1')6EBRi1') 61 B6SM )6  6 (ZE6S+, (ZRT4*(R, ¶ ! #%xot = )9 ') 61 Z*K('j))'1')6ER,6S34*(d -9. ') 61 Z*K('j))'1')6ER,6S34*(d -9 ') 61 Z+,1')/L*('Qk)(ZE6S34*(dlDM)6d Câu 5. (1 điểm)  6 1)('QPB7'5*K('j)R,B7'5m*K('j)R,P@Q 76V*1h*(PR,mn1*)To@N'm@=*EXZ- )6 *'cT1)('Q1J6*( D*Rid ppppppppppppppppppppppppppqpppppppppppppppppppppppppp ĐỀ. điểm)  6 1)('QPB7'5*K('j)R,B7'5m*K('j)R,P@Q 76V*1h*(PR,mn1*)To@N'm@=*EXZ- )6 *'cT1)('Q1J6*( D*Rid ppppppppppppppppppppppppppqpppppppppppppppppppppppppp ĐỀ CHÍNH THỨC HƯỚNG DẪN CHẤM TOÁN