有理数混合运算100题(有答案)精品资料 有理数的混合运算练习题50道（有答案的）
\u6709\u7406\u6570\u7684\u52a0\u51cf\u6df7\u5408\u8fd0\u7b97100\u9053\u9898\u542b\u8fc7\u7a0b\u7b54\u6848-3+5.6+56.4*3+47/3
=171.8+47/3
=2812/15
\u51cf\u6cd5\u6cd5\u5219\uff1a\u51cf\u53bb\u4e00\u4e2a\u6570\uff0c\u7b49\u4e8e\u52a0\u4e0a\u8fd9\u4e2a\u6570\u7684\u76f8\u53cd\u6570\u3002 \u5373a\u2013b = a + ( -b )
\u52a0\u51cf\u6df7\u5408\u8fd0\u7b97\u53ef\u4ee5\u7edf\u4e00\u4e3a\u52a0\u6cd5\u8fd0\u7b97\u3002\u5373a + b\u2013c = a + b +\uff08-c\uff09
\uff08\u20133\uff09\u2013\uff08+5\uff09+\uff08\u20134\uff09\u2013\uff08\u201310\uff09 2\u30013\u2013\uff08+5\uff09\u2013\uff08\u20131\uff09+\uff08\u20135\uff09
1\u20134 + 3\u20135 4\u3001\u20132.4 + 3.5\u20134.6 + 3.5 5\u3001 3\u20132 + 5\u20138
\u6709\u7406\u6570\u96c6
\u662f\u6574\u6570\u96c6\u7684\u6269\u5f20\u3002\u5728\u6709\u7406\u6570\u96c6\u5185\uff0c\u52a0\u6cd5\u3001\u51cf\u6cd5\u3001\u4e58\u6cd5\u3001\u9664\u6cd5\uff08\u9664\u6570\u4e0d\u4e3a\u96f6\uff094\u79cd\u8fd0\u7b97\u901a\u884c\u65e0\u963b\u3002\u6709\u7406\u6570a,b\u7684\u5927\u5c0f\u987a\u5e8f\u7684\u89c4\u5b9a\uff1a\u5982\u679ca-b\u662f\u6b63\u6709\u7406\u6570\uff0c\u5219\u79f0\u5f53a\u5927\u4e8eb\u6216b\u5c0f\u4e8ea\uff0c\u8bb0\u4f5ca>b\u6216b<a\u3002\u4efb\u4f55\u4e24\u4e2a\u4e0d\u76f8\u7b49\u7684\u6709\u7406\u6570\u90fd\u53ef\u4ee5\u6bd4\u8f83\u5927\u5c0f\u3002
\u6709\u7406\u6570\u96c6\u4e0e\u6574\u6570\u96c6\u7684\u4e00\u4e2a\u91cd\u8981\u533a\u522b\u662f\uff0c\u6709\u7406\u6570\u96c6\u662f\u7a20\u5bc6\u7684\uff0c\u800c\u6574\u6570\u96c6\u662f\u5bc6\u96c6\u7684\u3002\u5c06\u6709\u7406\u6570\u4f9d\u5927\u5c0f\u987a\u5e8f\u6392\u5b9a\u540e\uff0c\u4efb\u4f55\u4e24\u4e2a\u6709\u7406\u6570\u4e4b\u95f4\u5fc5\u5b9a\u8fd8\u5b58\u5728\u5176\u4ed6\u7684\u6709\u7406\u6570\uff0c\u8fd9\u5c31\u662f\u7a20\u5bc6\u6027\u3002\u6574\u6570\u96c6\u6ca1\u6709\u8fd9\u4e00\u7279\u6027\uff0c\u4e24\u4e2a\u76f8\u90bb\u7684\u6574\u6570\u4e4b\u95f4\u5c31\u6ca1\u6709\u5176\u4ed6\u7684\u6574\u6570\u4e86\u3002
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-1-23.33-(+76.76);
1-2*2*2*2;
(-6-24.3)-(-12+9.1)+(0-2.1);
-1+8-7
绛旓細30閬鏈夌悊鏁版贩鍚堣繍绠楅锛1銆(-15)+(-20)+(-2)=-37 2銆5+13-(-7)+6=31 3銆(-2)-8-12-13=-35 4銆(-7)+(-1)+7=-1 5銆(-11)+3-(-18)=10 6銆3+(-11)-(-3)=-5 7銆(-15)-6-(-18)=-3 8銆3+7+(-1)-(-8)=17 9銆(-1)鈥(-1)+15=15 10銆3-(-5)...
绛旓細(1) (-9)-(-13)+(-20)+(-2)(2) 3+13-(-7)/6 (3) (-2)-8-14-13 (4) (-7)*(-1)/7+8 (5) (-11)*4-(-18)/18 (6) 4+(-11)-1/(-3)(7) (-17)-6-16/(-18)(8) 5/7+(-1)-(-8)(9) (-1)*(-1)+15+1 (10) 3-(-5)*3/(-15)(11) 6*(...
绛旓細(1) (-9)-(-13)+(-20)+(-2)(2) 3+13-(-7)/6 (3) (-2)-8-14-13 (4) (-7)*(-1)/7+8 (5) (-11)*4-(-18)/18 (6) 4+(-11)-1/(-3)(7) (-17)-6-16/(-18)(8) 5/7+(-1)-(-8)(9) (-1)*(-1)+15+1 (10) 3-(-5)*3/(-...
绛旓細5+21*8/2-6-59 68/21-8-11*8+61 -2/9-7/9-56 4.6-(-3/4+1.6-4-3/4)鏈夌悊鏁璁＄畻棰 (5+3/8*8/30/(-2)-3 (-84)/2*(-3)/(-6)1/2*(-4/15)/2/3 -1+2-3+4-5+6-7 -50-28+(-24)-(-22)鏈夌悊鏁板姞鍑娣峰悎杩愮畻娴嬭瘯棰 1銆侊紙鈥7锛夆旓紙+5锛+锛堚4锛夆旓紙...
绛旓細5+21+8/2-6-59 68/21-8-11-8+61 -2/9-7/9-56 4.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12 [2/3-4-1/4+(-0.4)]/1/3+2 22+(-4)+(-2)+4-3 -2+8-8-1/2+8/1/8 (2/3+1/2)/(-1/12)+(-12)2/(-2)+0/7-(-8)-(-2)(1/4-5/6+1/3+2/3)...
绛旓細璋佸彂100閬鏈夌悊鏁版贩鍚堣繍绠,杩囩▼绛旀,鍦ㄧ嚎鎬 瑙ｆ瀽: (鈭5+1)²+(鈭5-1)² =(6+2鈭5)+(6-2鈭5) =12 20閬撴湁鐞嗘暟娣峰悎杩愮畻璇曢 甯︾瓟妗 鏈夌悊鏁扮殑娣峰悎杩愮畻杩囩▼浠ョ瓟妗 浣犲ソ,寰堥珮鍏翠负鎮ㄨВ绛斻傛湁鐞嗘暟鐨勬贩鍚堣繍绠楅『搴忔槸:鍏堢畻涔樻柟,鍐嶇畻涔橀櫎,鏈鍚庣畻鍔犲噺,濡傛灉鏈夋嫭鍙风殑鍏堢畻鎷彿閲岄潰鐨勩 60閬撴湁鐞嗘暟鐨勫姞鍑忔贩...
绛旓細鍔犲噺娣峰悎杩愮畻鍙互缁熶竴涓哄姞娉曡繍绠椼傚嵆a + b鈥揷 = a + b +锛-c锛夛紙鈥3锛夆擄紙+5锛+锛堚4锛夆擄紙鈥10锛 2銆3鈥擄紙+5锛夆擄紙鈥1锛+锛堚5锛1鈥4 + 3鈥5 4銆佲2.4 + 3.5鈥4.6 + 3.5 5銆 3鈥2 + 5鈥8 鏈夌悊鏁鐨勮璇 姝ｆ暣鏁板拰姝ｅ垎鏁板悎绉颁负姝ｆ湁鐞嗘暟锛岃礋鏁存暟鍜岃礋鍒嗘暟鍚堢О涓...
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绛旓細锛-6锛壝楋紙-14锛5銆4脳23+ 锛-16锛壝3脳锛-21锛- 125梅5 6銆6^3 - 2^4 + 5脳锛3^2锛7銆(-3)^2 + (-2)^3 - 126梅3 8銆8脳12+ 锛7-13锛塣2 - (2+5)^2 9銆(8+5-7)^2 + (36梅3 - 8)^3 10銆(6脳8 - 50) ^3 - (3脳16梅12+1)^2 + 33脳4 ...
绛旓細鍔犲噺娣峰悎杩愮畻鍙互缁熶竴涓哄姞娉曡繍绠椼傚嵆a + b鈥揷 = a + b +锛-c锛夛紙鈥3锛夆擄紙+5锛+锛堚4锛夆擄紙鈥10锛 2銆3鈥擄紙+5锛夆擄紙鈥1锛+锛堚5锛1鈥4 + 3鈥5 4銆佲2.4 + 3.5鈥4.6 + 3.5 5銆 3鈥2 + 5鈥8 鏈夌悊鏁闆 鏄暣鏁伴泦鐨勬墿寮犮傚湪鏈夌悊鏁伴泦鍐咃紝鍔犳硶銆佸噺娉曘佷箻娉曘侀櫎娉曪紙...
