目录新题型题库六年级最新版 小学新题型题库 小学数学新题型题库答案 新题型题库六年级数学电子书 新题型题库数学最新版答案
涓夌殑鍊嶆暟杈╁畯鍏勬槸6. 9. 45. 60
鍚�鍥犳暟浜旂殑鏄�15. 45. 60
鏄�浜岀粷瑾�,鍙堟槸涓夋惡琚�鐨勫�嶆暟鏄�6. 60
鍚屾椂鏄�涓夊拰浜旂殑鍊嶆暟鏄�15. 45. 60
杩欐槸鍑犻亾灏忓�︽瘯涓氭柊棰樺瀷棰樺簱鐨勯�橈紝绠�绠楀�備笅锛�
0.61脳0.25+0.18脳1/4+0.21脳25/100
= 0.61脳1/4+0.18脳1/4+0.21脳1/4
= 1/4 脳锛�0.61+0.18+0.21锛�
=1/4 脳1
=1/4
9999脳7+1111脳37
=1111脳9脳7+1111脳37
=1111脳63+1111脳37
=1111脳锛�63+37锛�
=1111脳100
=111100
999脳778+333脳666
=999脳778+333脳3脳222
=999 脳778+999脳222
=999脳锛�778+222锛�
=999脳1000
=999000
20022002/20012001
=2002脳10001/2001脳10001
=2002/2001
231梅231鍙�231/232
==231梅(231+231/232)
=231梅[231脳(1+1/232)]
=1梅(1+1/232)
=1梅(233/232)
=232/233
浠庝笂闈�涓�浜涢�樼湅鍑猴紝鏃犺�烘柊棰樺瀷杩樻槸鏅�閫氶�樺瀷锛岀畝绠楃殑鎶�宸у拰鏂规硶閮芥槸鐩稿悓鐨勶紝杩欎釜闇�瑕佸嫟缁冨�氳�傚療銆傚皬瀛﹂樁娈电殑绠�绠楁柟娉曞嵆杩愮敤鎵�瀛︾殑杩愮畻瀹氬緥锛屽彲浠ヤ娇璁＄畻杩囩▼绠�鍗曪紝鍚屾椂鍥㈣疆鐑傚張涓嶅�规槗鍑洪敊锛屽叿浣撴�荤粨濡備笅锛�
1.褰撲竴涓�绠�绠楅�樺彧鏈夊悓涓�绾ц繍绠楋紙鍙�鏈変箻闄ゆ垨鍙�鏈夊姞鍑忚繍绠楋級鍙堟病鏈夋嫭鍙锋椂锛屽彲浠モ�滃甫绗﹀彿鎼�瀹垛�濄�傚��
(a+b+c=a+c+b, a+b-c=a-c+b,a-b+c=a+c-b,a-b-c=a-c-b;a脳b脳c=a脳c脳b, a梅b梅c=a梅c梅b ,a脳b梅c=a梅c脳b, a梅b脳c=a脳c梅b)
2.娣诲姞鎷�鍙蜂娇杩愮畻璁＄畻绠�渚匡細
褰撶畝绠楅�樹腑鍙�鏈夊姞鍑忚繍濉屾紡绠楀張娌℃湁鎷�鍙锋椂锛屽彲浠ュ湪鍔犲彿鍚庨潰鐩存帴娣绘嫭鍙凤紝鎷�鍒版嫭鍙烽噷鐨勮繍绠楀師鏉ユ槸鍔犺繕鏄�鍔狅紝鏄�鍑忚繕鏄�鍑忋�備絾鏄�鍦ㄥ噺鍙峰悗闈㈡坊鎷�鍙锋椂锛屾嫭鍒版嫭鍙烽噷鐨勮繍绠楋紝鍘熸潵鏄�鍔狅紝鐜板湪灏辫�佸彉涓哄噺锛涘師鏉ユ槸鍑忥紝鐜板湪灏辫�佸彉涓哄姞锛涘�傦細
a+b+c=a+ (b + c ),a+b-c=a +(b-c), a-b+c=a 鈥�(b-c),a-b-c= a-( b +c);
鍚岀悊褰撶畝绠楅�樹腑鍙�鏈変箻闄よ繍绠楀張娌℃湁鎷�鍙锋椂锛屽彲浠ュ湪涔樺彿鍚庨潰鐩存帴娣绘嫭鍙凤紝鎷�鍒版嫭鍙烽噷鐨勮繍绠楋紝鍘熸潵鏄�涔樿繕鏄�涔橈紝鏄�闄よ繕鏄�闄ゃ�備絾鏄�鍦ㄩ櫎鍙峰悗闈㈡坊鎷�鍙锋椂锛屾嫭鍒版嫭鍙烽噷鐨勮繍绠楋紝鍘熸潵鏄�涔橈紝鐜板湪灏辫�佸彉涓洪櫎锛涘師鏉ユ槸闄わ紝鐜板湪灏辫�佸彉涓轰箻銆傚�傦細
a脳b脳c=a脳(b脳c), a脳b梅c=a脳(b梅c), a梅b梅c=a梅(b脳c) ,a梅b脳c=a梅(b梅c)
3.鍘绘帀鎷�鍙蜂娇杩愮畻璁＄畻绠�渚匡細
褰撶畝绠楅�樺彧鏈夊姞鍑忚繍绠楀張鏈夋嫭鍙锋椂锛屽彲浠ュ皢鍔犲彿鍚庨潰鐨勬嫭鍙风洿鎺ュ幓鎺夛紝鍘熸潵鏄�鍔犵幇鍦ㄨ繕鏄�鍔狅紝鏄�鍑忚繕鏄�鍑忋�備絾鏄�鍦ㄥ皢鍑忓彿鍚庨潰鐨勬嫭鍙峰幓鎺夋椂锛屽師鏉ユ嫭鍙烽噷鐨勫姞锛岀幇鍦ㄨ�佸彉涓哄噺锛涘師鏉ユ槸鍑忥紝鐜板湪灏辫�佸彉涓哄姞銆傚�傦細
a+ (b + c )= a+b+c 锛�a +(b-c)= a+b-c锛�a 鈥�(b-c)= a-b+c锛�a-( b +c)= a-b-c;
鍚岀悊褰撶畝绠楅�樺彧鏈変箻闄よ繍绠楀張鏈夋嫭鍙锋椂锛屽彲浠ュ皢涔樺彿鍚庨潰鐨勬嫭鍙风洿鎺ュ幓鎺夛紝鍘熸潵鏄�涔樿繕鏄�涔橈紝鏄�闄よ繕鏄�闄ゃ�備絾鏄�鍦ㄥ皢闄ゅ彿鍚庨潰鐨勬嫭鍙峰幓鎺夋椂锛屽師鏉ユ嫭鍙烽噷鐨勪箻锛岀幇鍦ㄥ氨瑕佸彉涓洪櫎锛涘師鏉ユ槸闄わ紝鐜板湪灏辫�佸彉涓轰箻銆傚�傦細
a脳(b脳c) = a脳b脳c锛�a脳(b梅c) = a脳b梅c锛�a梅(b脳c) = a梅b梅c 锛� a梅(b梅c) = a梅b脳c锛�
4.涔樻硶鍒嗛厤寰嬬殑涓ょ�嶅吀鍨嬬被鍨�
涓�涓�鏄�鎷�鍙烽噷鏄�鍔犳垨鍑忚繍绠楋紝涓庡彟涓�涓�妗愭縺鏁扮浉涔橈紝娉ㄦ剰鍒嗛厤锛�
鍙︿竴涓�鏄�娉ㄦ剰鐩稿悓鍥犳暟鐨勬彁鍙栵紱濡備笂渚嬮�橈紙 0.61脳0.25+0.18脳1/4+0.21脳25/100 锛�
5.杩樻湁涓�浜涚畝绠楀皬鎶�宸�
锛�1锛夊阀鍊燂細锛堝��9999+999+99+9=10000-1+1000-1+100-1+10-1=11110-4=11106锛�
锛�2锛変笉鏀瑰彉鏁板垎鎷嗭紝濡備笂渚嬮�橈紙999脳778+333脳666锛�
锛�3锛夊阀鍙橀櫎涓轰箻
锛�4锛夋敞鎰忔瀯閫狅紝璁╃畻寮忔弧瓒充箻娉曞垎閰嶅緥鐨勬潯浠讹紱濡備笂渚嬮�橈紙9999脳7+1111脳37 锛�
涓�棰樹笉鐭�2锛氬墠鏁拌�鹃渶鍚�鑽�閲�35%鐨勮嵂鎱ф礊棣栨按xkg35%锛歺=1.75%锛�800x=160003锛氳�句箰涔愬�剁殑鐢电儹姘村櫒姘撮噺鍗囬ⅳ婕忔槸xLx-20%-18[x-(20%+18)]*10%=50%-3x-0.2-18-[0.1-(0.02x+18)]=0.5x-30.8x-18-0.08x+1.8 =0.5-3x=60
棰樼洰鍛�锛熴�傘�傘�傘�傘�傘�傘�傘��1銆�3.82銆�0.9
x鍑忎簲鍒嗕箣涓墄绛変簬涓夊張浜斿垎涔嬩竴
x-3/5x=16/5
5x-3x=16
2x=16
x=8
涓墄鍑忛浂鐐瑰叓涔樼櫨鍒嗕箣涓冨崄浜旂瓑浜庝簩鐐逛竴
3x-0.8*75%=2.1
3x-4/5*3/4=2.1
3x-3/5=2.1
3x=2.1+0.6
3x=2.7
x=0.9
x涔橈紙涓�鍑忕櫨鍒嗕箣涓夊崄浜旂偣涓冿級绛変簬鍏�鍒嗕箣浜�
x(1-35.7%)=5/8
x*0.643=0.625
x=0.972
鍥涚偣浜寈闄や互涓�鐐瑰叚鍑忎憨鏁ｈ繜鍗佸洓绛変簬闆剁偣涓�涓冧簲
4.2x/1.6-14=0.175
2.625x=14.175
x=5.4
闆剁偣涓冧簩涔樹笁鍑忛浂鐐逛笁x绛変簬闆剁偣闆跺叚
0.72*3-0.3x=0.06
0.72-0.1x=0.02
0.1x=0.7
x=7
浜旈櫎浠ワ紙x鍔犲崄鍏�鐐瑰叓鍥涳級绛変簬浜斿垎涔嬩竴
5/(x+16.84)=1/5
x+16.84=25
x=8.16
鍥涘垎涔嬩笁鍔犲叚鍒嗕箣浜攛鍑忓叚绛変簬涓夊垎涔嬩竴
3/4+5/6x-6=1/3
9+10x-72=4
10x=67
x=6.7
涓�鍙堜簲鍒嗕箣涓夐櫎浠ワ紙x鍑忛浂鐐瑰洓浜旓級绛変簬涓夊張浜斿垎涔嬩竴
8/5梅(x-0.45)=16/5
1梅(x-0.45)=2
x-0.45=1/2
x=0.95
鍥涘垎涔嬩笁x鍑忕櫨鍒嗕箣浜攛绛変簬鍗佷竷鐐逛簲
3/4x-5%x=17.5
75x-5x=1750
70x=1750
x=25
鍏�鍗佷竴x鍑忎笁鐧惧洓鍗佷簩绛変簬涓冨崄鍏�锛坸鍑忎簩锛�
x/8-342=76(x-2)
x-2736=608x-1216
607x=-1520
x=-2.504
涔濈偣涓�鍑忎笁x绛変簬杩呮潕鍥泋鍔犱竷
9.1-3x=4x+7
7x=2.1
x=0.3
鍥涳紙x鍑忎竴鐐逛簩锛夌瓑浜庝竴鐐逛簲x鍔犱簲鐐逛簩
4(x-1.2)=1.5x+5.2
4x-4.8-1.5x=5.2
2.5x=10
x=4
浜寈鍑忎簩鍒嗕箣x鍔犳帢浜忎竴绛変簬浜屽姞浜屽垎涔媥鍔犱竴
2x-x/2+1=2+x/2+1
2x-x=2
x=2
