2014骞村湅瀹跺叕鍕�(w霉)鍝¤€冭│缈�(x铆)椤�:琛屾脯鏁�(sh霉)瀛楁帹鐞嗛
鐎忚
鏀惰棌
銆€銆€銆�101銆� 3锛�7, 47锛�2207锛�( )
銆€銆€A.4414;B.6621;C.8828;D.4870847
銆€銆€绛旓細閬窪锛岀涓€闋呯殑骞虫柟 - 2=绗簩闋�
銆€銆€銆�102銆�20锛�22锛�25锛�30锛�37锛�( )
銆€銆€A.39;B.45;C.48;D.51
銆€銆€绛旓細閬窩锛屽叐闋呬箣宸垚璩�(zh矛)鏁�(sh霉)鍒�=>2銆�3銆�5銆�7銆�11
銆€銆€銆�103銆�1锛�4锛�15锛�48锛�135锛�( )
銆€銆€A.730;B.740;C.560;D.348;
銆€銆€绛旓細閬窪锛屽厛鍒嗚В鍚勯爡=>1=1脳1锛� 4=2脳2锛� 15=3脳5锛� 48=4脳12锛� 135=5脳27锛� 348=6脳58=>鍚勯爡鐢�1銆�2銆�3銆�4銆�5銆�6鍜�1銆�2銆�5銆�12銆�27銆�58妲�(g貌u)鎴�=>鍏朵腑锛�1銆�2銆�3銆�4銆�5銆�6 绛夊樊;鑰�1銆�2銆�5銆�12銆�27銆�58=>2=1脳2+0锛� 5=2脳2+1锛� 12=5脳2+2锛� 27=12脳2+3锛� 58=27脳2+4锛屽嵆绗竴闋呬箻浠�2+涓€鍊嬪父鏁�(sh霉)=绗簩闋�锛屼笖甯告暩(sh霉)鍒�0銆�1銆�2銆�3銆�4 绛夊樊銆�
銆€銆€銆�104銆�16锛�27锛�16锛�( )锛�1
銆€銆€A.5;B.6;C.7;D.8
銆€銆€绛旓細閬窤锛�16=24锛�27=33 锛� 16=42锛� 5=51 锛�1=60 锛�
銆€銆€銆�105銆�4锛�12锛�8锛�10锛�( )
銆€銆€A.6;B.8;C.9;D.24;
銆€銆€绛旓細閬窩锛�
銆€銆€鎬濊矾涓€锛�4-12=-8 12-8=4 8-10=-2 10-9=1, 鍏朵腑锛�-8銆�4銆�-2銆�1 绛夋瘮銆傛€濊矾浜�:(4+12)/2=8 (12+8)/2=10 (10+8)/2=/=9
銆€銆€銆�106銆�4锛�11锛�30锛�67锛�( )
銆€銆€A.126;B.127;C.128;D.129
銆€銆€绛旓細閬窩锛� 鎬濊矾涓€:4, 11, 30, 67, 128 涓夌礆绛夊樊銆傛€濊矾浜�: 4=13+3 11=23+3 30=33+3 67=43+3 128=53+3=128
銆€銆€銆�107銆�0锛�1/4锛�1/4锛�3/16锛�1/8锛�( )
銆€銆€A.1/16;B.5/64;C.1/8;D.1/4
銆€銆€绛旓細閬窧锛�
銆€銆€鎬濊矾涓€锛�0脳(1/2),1脳(1/4),2脳(1/8),3脳(1/16),4脳(1/32),5脳(1/64).鍏朵腑,0,1,2,3,4,5绛夊樊;1/2,1/4,1/8,1/16,1/32 绛夋瘮銆�
銆€銆€鎬濊矾浜岋細0/2锛�1/4锛�2/8锛�3/16锛�4/32锛�5/64锛屽叾涓�,鍒嗗瓙:0,1,2,3,4,5 绛夊樊; 鍒嗘瘝2,4,8,16,32,64 绛夋瘮
銆€銆€銆�108銆�102锛�1030204锛�10305020406锛�( )
銆€銆€A.1030507020406;B.1030502040608;C.10305072040608; D.103050702040608;
銆€銆€绛旓細閬窧锛�
銆€銆€鎬濊矾涓€锛�1+0+2=3 1+0+3+0+2+0+4=10,1+0+3+0+5+0+2+0+4+0+6=21锛�1+0+3+0+5+0+7+0+2+0+4+0+6+0+8=36鍏朵腑3,10,21,36 浜岀礆绛夊樊銆�
銆€銆€鎬濊矾浜岋細2,4,6,8=>灏炬暩(sh霉)鍋舵暩(sh霉)閬炲; 鍚勯爡鐨勪綅鏁�(sh霉)鍒嗗垾鐐�3锛�7锛�11锛�15 绛夊樊; 姣忛爡棣栧熬鏁�(sh霉)瀛楃浉鍔犵浉绛夈€�
銆€銆€鎬濊矾涓夛細鍚勯爡涓殑0鐨勫€嬫暩(sh霉)鍛�1,3,5,7鐨勮(gu墨)寰�;鍚勯爡闄�0浠ュ鐨勫厓绱犲憟濂囧伓,濂囧鍋跺伓,濂囧濂囧伓鍋跺伓,濂囧濂囧鍋跺伓鍋跺伓鐨勮(gu墨)寰�
銆€銆€銆�109銆�3锛�10锛�29锛�66锛�( )
銆€銆€A.37;B.95;C.100;D.127;
銆€銆€绛旓細閬窧锛�
銆€銆€鎬濊矾涓€锛�3 10 29 66 ( d )=> 涓夌礆绛夊樊銆�
銆€銆€鎬濊矾浜岋細3=13+2, 10=23+2, 29=33+2, 66=43+2, 127=53+2
銆€銆€銆�110銆�1/2锛�1/9锛�1/28锛�( )
銆€銆€A.1/65;B.1/32;C.1/56;D.1/48;
銆€銆€绛旓細閬窧锛屽垎姣嶏細2,6,28,65=>2=13+1, 9=23+1, 28=33+1, 65=43+1
銆€銆€銆�111銆�-3/7锛�3/14锛�-1/7锛�3/28锛�( )
銆€銆€A銆�3/35;B銆�-3/35;C銆�-3/56;D銆�3/56;
銆€銆€绛旓細閬窧锛� -3/7锛� 3/14锛� -1/7锛� 3/28锛� -3/35=>-3/7锛� 3/14 锛�-3/21锛� 3/28锛� -3/35,鍏朵腑,鍒嗘瘝锛�-3,3,-3,3,-3 绛夋瘮; 鍒嗗瓙锛�7,14,21,28,35 绛夊樊
銆€銆€銆�112銆�3锛�5锛�11锛�21锛�( )
銆€銆€A銆�42;B銆�40;C銆�41;D銆�43;
銆€銆€绛旓細閬窪锛� 5=3脳2-1, 11=5脳2+1, 21=11脳2-1, 43=21脳2+1, 鍏朵腑,-1,1,-1,1绛夋瘮
銆€銆€銆�113銆�6锛�7锛�19锛�33锛�71锛�( )
銆€銆€A銆�127;B銆�130;C銆�137;D銆�140;
銆€銆€绛旓細閬窩锛�
銆€銆€鎬濊矾涓€锛�7=6脳2-5, 19=7脳2+5, 33=19脳2-5, 71=33脳2+5, 137=71脳2-5,鍏朵腑,-5,5,-5,5,-5 绛夋瘮銆�
銆€銆€鎬濊矾浜岋細19(绗笁闋�)=6(绗竴闋�) 脳2+7(绗簩闋�), 33=7脳2+19, 71=19脳2+33, 137=33脳2+71
銆€銆€銆�114銆�1/11锛�7锛�1/7锛�26锛�1/3锛�( )
銆€銆€A銆�-1;B銆�63;C銆�64;D銆�62;
銆€銆€绛旓細閬窧锛屽鏁�(sh霉)闋咃細1/11,1/7,1/3銆� 鍒嗘瘝锛�11,7,3 绛夊樊;鍋舵暩(sh霉)闋咃細7,26,63銆傜涓€闋吤�2+11=绗簩闋�,鎴�7,26,63=>7=23-1, 26=33-1, 63=43-1
銆€銆€銆�115銆�4锛�12锛�39锛�103锛�( )
銆€銆€A銆�227;B銆�242;C銆�228;D銆�225;
銆€銆€绛旓細閬窩锛�4=1脳1+3 12=3脳3+3 39=6脳6+3 103=10脳10+3 228=15脳15+3锛屽叾涓�1,3,6,10,15 浜岀礆绛夊樊
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