2020骞村叕鍕�(w霉)鍝¤€冭│琛屾脯鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)锛堜簩锛�
鐎忚
鏀惰棌
1.2锛�2锛�3锛�4锛�9/2锛�( )
A.5
B.11/2
C.6
D.11/3
2.4锛�5锛�( )锛�14锛�23锛�37
A.6
B.7
C.8
D.9
3.6锛�21锛�52 锛�105 锛�( )
A.172
B.186
C.210
D.224
4.1 锛�2 锛� 3 锛� 7 锛� 46 锛�( )
A.2109
B.1289
C.322
D.147
5.73锛�65锛�57锛�( )锛�41銆�
A.49
B.51
C.43
D.53
1.绛旀: B
銆愯В鏋愩€戯細鍘熸暩(sh霉)鍒楀叐鍏╁垎绲勶細[2锛�2]銆乕3锛�4]銆乕9/2锛�( )];
绲勫収(n猫i)鍔犲拰寰楀埌鏂版暩(sh霉)鍒楋細4銆�7銆�(10)锛岀偤绛夊樊鏁�(sh霉)鍒�銆�
鍙緱鏈煡闋呯偤10-9/2=11/2锛屾晠姝ｇ⒑绛旀鐐築銆�
2.绛旀: D
銆愯В鏋愩€戯細閫欐槸涓€绲勯仦鎺ㄦ暩(sh霉)鍒�锛屽緸绗笁闋呴枊濮�锛屾瘡闋呯偤鍓嶅叐闋呬箣鍜�锛屽嵆4+5=(9)锛�5+(9)=14锛�14+23=37锛屽洜姝ょ涓夐爡鎳�(y墨ng)鐐�9锛屾晠姝ｇ⒑绛旀鐐篋銆傛晠姝ｇ⒑绛旀鐐篋銆�
3.绛旀: B
銆愯В鏋愩€戯細灏嶅師鏁�(sh霉)鍒楀仛鍥犳暩(sh霉)鍒嗚В 6= 2×3锛�21 = 3×7 锛�52 =4×13锛�105=5×21 銆傚叾涓乏瀛愬垪2銆�3銆�4銆�5 鐐虹瓑宸暩(sh霉)鍒�锛屽彸瀛愬垪 3銆�7銆�13銆�21 鐐轰簩绱氱瓑宸暩(sh霉)鍒�銆傛晠鍘熸暩(sh霉)鍒椾笅涓€闋呯偤 6×31=186锛岄伕B閬搁爡銆�
4.绛旀: A
銆愯В鏋愩€戯細 绗簩鍊嬫暩(sh霉)鐨勫钩鏂规笡鍘荤涓€鍊嬫暩(sh霉)绛変簬绗笁鍊嬫暩(sh霉)锛岀涓夊€嬫暩(sh霉)鐨勫钩鏂规笡鍘荤浜屽€嬫暩(sh霉)绛変簬绗洓鍊嬫暩(sh霉)銆備緷姝ら鎺�锛屾嫭铏熷収(n猫i)鐨勬暩(sh霉)鎳�(y墨ng)绛変簬 46鐨勫钩鏂�-7 锛屽嵆 2109 銆�
5.绛旀: A
銆愯В鏋愩€戯細 鍘熸暩(sh霉)鍒楃偤鍏樊鐐�-8鐨勭瓑宸暩(sh霉)鍒�锛�( )=41-( -8 )=49锛屽洜姝�锛屾湰椤岀瓟妗堢偤A閬搁爡銆�
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