Đề toán lớp 7 - Đề kiểm tra, thi định kỳ, chọn học sinh năng khiếu toán lớp 7 tham khảo (73)

ĐỀ KIỂM TRA HỌC KỲ I MÔN TOÁN 7 NĂM HỌC 2012 - 2013 Thời gian làm bài: 90 phút ĐỀ BÀI I. TRẮC NGHIỆM:    !  " − + − # $ % − & ! −   " '− () !  * % + * " −− # $  !− & ! −  !  (  ! ,-./0 d c b a = 123456./0#7 $ b c d a = & a d b c =  d c a b =  ( c d a b = %85933# $859:;<859:;12= &859>/ (859:;?;1?@ *>59A>AB ba ⊥ A>CCD $ ⊥  &CC CC> ( cb ⊥  ,=E=F?;A:G#không đúng: $,H1I>J'K K  81I>L &81IM (,H1I>JNH >1=F II. TỰ LUẬN:O &#A*,P/+ a,        − +       − %  + %  !  ! b, % * !' !*   " % '  !  +−++ c, %O   %   %O  O %   ⋅−⋅ &#!A*QR4S56>@O$AO&AOT56./?@%A*A &H3R4 >@#O*4,3R4=#=U@S567 &#AK=FV$&1V$WV&X#2=$& 0= OBMOAM ∆=∆  >0= ABOM ⊥ ,YN=Z9>#59$&:;02=VA[42= (3($W(&0=>2=VAXA(9# &#%AK) T×m x vµ y biÕt : a) KK % !! =+= yxva yx  b) (x - 5) 2 + | y 2 – 4| = 0 Bài làm: \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ D M O B A ĐÁP ÁN – BIỂU ĐIỂM ĐỀ THI MÔN TOÁN 7 - HỌC KỲ I Năm học 2012-2013 A . Phần trắc nghiệm :AK2=  !  % * & ( (  $  XU</=+KA*2= B . Phần tự luận :OAK2= &#A*2=,P/+A*         − +       − %  + %  !  ! W       − + %  + %  % ' W + % '   − W ! ! KA*  b, !' %  !' !*  !' !* ! !' !*  % * % '   "  !  % * !' !*   " % '  !  =−=−+=−+++=+−++ KA* c, %% %   %O   %O  O %   %O   %   %O  O %   ==−=⋅−⋅ KA*  &#!A*2=]I^A4A_T56#3R4S56>@O$AO&AOKA!* `D^A4A_./?@%A*A ?#^a4a_WO*K!* Q4 *% zyx == ?#^a4a_WO*KA!* ,b[cd4.3R>JA1+  * * O* *% *% == ++ ++ === zyxzyx KA!* Q4^W!KA4W!*A_WKKA!* GKA!* &#AK8D?eM?MA>+KA!* 8D?eM?M+KA!* +AKf=F+ OBMOAM ∆∆ ?# 1 V$WV&  VXg X&WX$cX#2=$& Q4 OBMOAM ∆=∆ hh XUiY#KA!*2= >+KAO*,bA OBMOAM ∆=∆ 34 BMOAMO jj = KA!* =# K "K jj =+ BMOAMO 1:k>LKA!* Wl K K 'K ! "K jj === BMOAMO  `G4VX ⊥ $&KA!* KAO*0=5mP(X ⊥ $&KA!*  Wl K "K jj =+ BMDBMO 34>2=VAXA(9#KA* &#%AK2=) T×m x vµ y biÕt : a) "n %n % !* KK  ' ' KK % !! !!!! !! ±=±=⇒==⇒== + + ==⇒=+= yxyx yxyx yxva yx  KA* b) (x - 5) 2 + | y 2 – 4| = 0 K* =−⇒ x và ! y h%WK *=⇒ x ?# ! y W% *=⇒ x ?# y W ± !KA* . ĐỀ KIỂM TRA HỌC KỲ I MÔN TOÁN 7 NĂM HỌC 2012 - 2013 Thời gian làm bài: 90 phút ĐỀ BÀI I. TRẮC NGHIỆM:   . làm: \\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\ D M O B A ĐÁP ÁN – BIỂU ĐIỂM ĐỀ THI MÔN TOÁN 7 - HỌC KỲ I Năm học 201 2-2 013 A . Phần trắc nghiệm :AK2=  !  % * & ( (  $  XU</=+KA*2= B. - 5) 2 + | y 2 – 4| = 0 Bài làm: \\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\ D M O B A ĐÁP ÁN – BIỂU ĐIỂM ĐỀ THI