列出一个综合算式，使算式中只含有4.7.8.12这四个数，并且得数是24。急急急!四年级下学期期末模拟测验题。
3 4 1 9 \u56db\u4e2a\u6570\u7528+ \uff0d \u00d7 \u00f7\uff0c\u5f97\u6570\u4e3a24\u7684\u7b97\u5f0f\u3002 \u901f\u5ea6\u89e3\u7b54\u3001 \u667a\u5546\u6d4b\u8bd51: (3 \u00d7 (4 + 1)) + 9
2: 3 \u00d7 (4 + 1) + 9
3: (3 \u00d7 (1 + 4)) + 9
4: 3 \u00d7 (1 + 4) + 9
5: 3 \u00d7 9 - 4 + 1
6: (3 \u00d7 9) - 4 + 1
7: (3 \u00d7 9 - 4) + 1
8: ((3 \u00d7 9) - 4) + 1
9: 3 \u00d7 9 -(4 - 1)
10: (3 \u00d7 9) - (4 - 1)
11: 3 \u00d7 9 + 1 - 4
12: (3 \u00d7 9) + 1 - 4
13: (3 \u00d7 9 + 1) - 4
14: ((3 \u00d7 9) + 1) - 4
15: 3 \u00d7 9 +(1 - 4)
16: (3 \u00d7 9) + (1 - 4)
17: (4 + 1) \u00d7 3 + 9
18: ((4 + 1) \u00d7 3) + 9
19: (4 - 1) \u00d7 9 - 3
20: ((4 - 1) \u00d7 9) - 3
21: 4 \u00d7 (1 \u00d7 9 - 3)
22: 4 \u00d7 ((1 \u00d7 9) - 3)
23: 4 \u00d7 (1 \u00d7 (9 - 3))
24: 4 \u00d7 1 \u00d7(9 - 3)
25: (4 \u00d7 1) \u00d7 (9 - 3)
26: 4 \u00f7 1 \u00d7(9 - 3)
27: (4 \u00f7 1) \u00d7 (9 - 3)
28: 4 \u00f7 (1 \u00f7 (9 - 3))
29: (4 \u00d7 (9 - 3)) \u00d7 1
30: 4 \u00d7 (9 - 3) \u00d7 1
31: 4 \u00d7 (9 - 3 \u00d7 1)
32: 4 \u00d7 ((9 - 3) \u00d7 1)
33: 4 \u00d7 (9 - (3 \u00d7 1))
34: (4 \u00d7 (9 - 3)) \u00f7 1
35: 4 \u00d7 (9 - 3) \u00f7 1
36: 4 \u00d7 (9 - 3 \u00f7 1)
37: 4 \u00d7 ((9 - 3) \u00f7 1)
38: 4 \u00d7 (9 - (3 \u00f7 1))
39: 4 \u00d7 (9 - 1 \u00d7 3)
40: 4 \u00d7 (9 - (1 \u00d7 3))
41: 4 \u00d7 (9 \u00d7 1 - 3)
42: 4 \u00d7 ((9 \u00d7 1) - 3)
43: 4 \u00d7 (9 \u00f7 1 - 3)
44: 4 \u00d7 ((9 \u00f7 1) - 3)
45: 1 + 3 \u00d7 9 - 4
46: (1 + 3 \u00d7 9) - 4
47: (1 + (3 \u00d7 9)) - 4
48: 1 + (3 \u00d7 9) - 4
49: 1 + (3 \u00d7 9 - 4)
50: 1 + ((3 \u00d7 9) - 4)
51: (1 + 4) \u00d7 3 + 9
52: ((1 + 4) \u00d7 3) + 9
53: 1 - 4 + 3 \u00d7 9
54: (1 - 4) + 3 \u00d7 9
55: 1 - 4 +(3 \u00d7 9)
56: (1 - 4) + (3 \u00d7 9)
57: 1 - (4 - 3 \u00d7 9)
58: 1 - (4 - (3 \u00d7 9))
59: 1 - 4 + 9 \u00d7 3
60: (1 - 4) + 9 \u00d7 3
61: 1 - 4 +(9 \u00d7 3)
62: (1 - 4) + (9 \u00d7 3)
63: 1 - (4 - 9 \u00d7 3)
64: 1 - (4 - (9 \u00d7 3))
65: 1 \u00d7 (4 \u00d7 (9 - 3))
66: 1 \u00d7 4 \u00d7(9 - 3)
67: (1 \u00d7 4) \u00d7 (9 - 3)
68: 1 + 9 \u00d7 3 - 4
69: (1 + 9 \u00d7 3) - 4
70: (1 + (9 \u00d7 3)) - 4
71: 1 + (9 \u00d7 3) - 4
72: 1 + (9 \u00d7 3 - 4)
73: 1 + ((9 \u00d7 3) - 4)
74: (1 \u00d7 9 - 3) \u00d7 4
75: ((1 \u00d7 9) - 3) \u00d7 4
76: (1 \u00d7 (9 - 3)) \u00d7 4
77: 1 \u00d7 (9 - 3) \u00d7 4
78: 1 \u00d7 ((9 - 3) \u00d7 4)
79: 9 + (3 \u00d7 (4 + 1))
80: 9 + 3 \u00d7(4 + 1)
81: (9 - 3) \u00d7 4 \u00d7 1
82: ((9 - 3) \u00d7 4) \u00d7 1
83: (9 - 3) \u00d7 (4 \u00d7 1)
84: (9 - 3) \u00d7 4 \u00f7 1
85: ((9 - 3) \u00d7 4) \u00f7 1
86: (9 - 3) \u00d7 (4 \u00f7 1)
87: 9 \u00d7 3 - 4 + 1
88: (9 \u00d7 3) - 4 + 1
89: (9 \u00d7 3 - 4) + 1
90: ((9 \u00d7 3) - 4) + 1
91: 9 \u00d7 3 -(4 - 1)
92: (9 \u00d7 3) - (4 - 1)
93: 9 + (3 \u00d7 (1 + 4))
94: 9 + 3 \u00d7(1 + 4)
95: (9 - 3) \u00d7 1 \u00d7 4
96: (9 - 3 \u00d7 1) \u00d7 4
97: ((9 - 3) \u00d7 1) \u00d7 4
98: (9 - (3 \u00d7 1)) \u00d7 4
99: (9 - 3) \u00d7 (1 \u00d7 4)
100: (9 - 3) \u00f7 1 \u00d7 4
101: (9 - 3 \u00f7 1) \u00d7 4
102: ((9 - 3) \u00f7 1) \u00d7 4
103: (9 - (3 \u00f7 1)) \u00d7 4
104: (9 - 3) \u00f7 (1 \u00f7 4)
105: 9 \u00d7 3 + 1 - 4
106: (9 \u00d7 3) + 1 - 4
107: (9 \u00d7 3 + 1) - 4
108: ((9 \u00d7 3) + 1) - 4
109: 9 \u00d7 3 +(1 - 4)
110: (9 \u00d7 3) + (1 - 4)
111: 9 + (4 + 1) \u00d7 3
112: 9 + ((4 + 1) \u00d7 3)
113: (9 \u00d7 (4 - 1)) - 3
114: 9 \u00d7 (4 - 1) - 3
115: (9 - 1 \u00d7 3) \u00d7 4
116: (9 - (1 \u00d7 3)) \u00d7 4
117: (9 \u00d7 1 - 3) \u00d7 4
118: ((9 \u00d7 1) - 3) \u00d7 4
119: (9 \u00f7 1 - 3) \u00d7 4
120: ((9 \u00f7 1) - 3) \u00d7 4
121: 9 + (1 + 4) \u00d7 3
122: 9 + ((1 + 4) \u00d7 3)
1: (2 + 2) \u00d7 4 + 8
2: ((2 + 2) \u00d7 4) + 8
3: 2 \u00d7 2 \u00d7 4 + 8
4: (2 \u00d7 2) \u00d7 4 + 8
5: (2 \u00d7 2 \u00d7 4) + 8
6: ((2 \u00d7 2) \u00d7 4) + 8
7: (2 \u00d7 (2 \u00d7 4)) + 8
8: 2 \u00d7 (2 \u00d7 4) + 8
9: (2 \u00d7 (2 + 8)) + 4
10: 2 \u00d7 (2 + 8) + 4
11: 2 \u00d7 (2 \u00d7 8 - 4)
12: 2 \u00d7 ((2 \u00d7 8) - 4)
13: (2 + 4) \u00f7 2 \u00d7 8
14: ((2 + 4) \u00f7 2) \u00d7 8
15: (2 + 4) \u00f7 (2 \u00f7 8)
16: 2 \u00d7 4 + 2 \u00d7 8
17: (2 \u00d7 4) + 2 \u00d7 8
18: 2 \u00d7 4 +(2 \u00d7 8)
19: (2 \u00d7 4) + (2 \u00d7 8)
20: 2 \u00d7 4 \u00d7 2 + 8
21: (2 \u00d7 4) \u00d7 2 + 8
22: (2 \u00d7 4 \u00d7 2) + 8
23: ((2 \u00d7 4) \u00d7 2) + 8
24: (2 \u00d7 (4 \u00d7 2)) + 8
25: 2 \u00d7 (4 \u00d7 2) + 8
26: (2 + 4) \u00d7 8 \u00f7 2
27: ((2 + 4) \u00d7 8) \u00f7 2
28: (2 + 4) \u00d7 (8 \u00f7 2)
29: 2 \u00d7 4 + 8 \u00d7 2
30: (2 \u00d7 4) + 8 \u00d7 2
31: 2 \u00d7 4 +(8 \u00d7 2)
32: (2 \u00d7 4) + (8 \u00d7 2)
33: (2 + 8) \u00d7 2 + 4
34: ((2 + 8) \u00d7 2) + 4
35: (2 + 8 \u00f7 2) \u00d7 4
36: (2 + (8 \u00f7 2)) \u00d7 4
37: (2 \u00d7 (8 + 2)) + 4
38: 2 \u00d7 (8 + 2) + 4
39: 2 \u00d7 8 + 2 \u00d7 4
40: (2 \u00d7 8) + 2 \u00d7 4
41: 2 \u00d7 8 +(2 \u00d7 4)
42: (2 \u00d7 8) + (2 \u00d7 4)
43: 2 \u00d7 (8 \u00d7 2 - 4)
44: 2 \u00d7 ((8 \u00d7 2) - 4)
45: 2 \u00d7 8 + 4 \u00d7 2
46: (2 \u00d7 8) + 4 \u00d7 2
47: 2 \u00d7 8 +(4 \u00d7 2)
48: (2 \u00d7 8) + (4 \u00d7 2)
49: (2 \u00d7 8 - 4) \u00d7 2
50: ((2 \u00d7 8) - 4) \u00d7 2
51: 4 + (2 \u00d7 (2 + 8))
52: 4 + 2 \u00d7(2 + 8)
53: (4 + 2) \u00f7 2 \u00d7 8
54: ((4 + 2) \u00f7 2) \u00d7 8
55: (4 + 2) \u00f7 (2 \u00f7 8)
56: (4 - 2 \u00f7 2) \u00d7 8
57: (4 - (2 \u00f7 2)) \u00d7 8
58: (4 \u00d7 (2 + 2)) + 8
59: 4 \u00d7 (2 + 2) + 8
60: 4 \u00d7 2 + 2 \u00d7 8
61: (4 \u00d7 2) + 2 \u00d7 8
62: 4 \u00d7 2 +(2 \u00d7 8)
63: (4 \u00d7 2) + (2 \u00d7 8)
64: 4 \u00d7 2 \u00d7 2 + 8
65: (4 \u00d7 2) \u00d7 2 + 8
66: (4 \u00d7 2 \u00d7 2) + 8
67: ((4 \u00d7 2) \u00d7 2) + 8
68: (4 \u00d7 (2 \u00d7 2)) + 8
69: 4 \u00d7 (2 \u00d7 2) + 8
70: 4 + (2 + 8) \u00d7 2
71: 4 + ((2 + 8) \u00d7 2)
72: 4 + (2 \u00d7 (8 + 2))
73: 4 + 2 \u00d7(8 + 2)
74: (4 + 2) \u00d7 8 \u00f7 2
75: ((4 + 2) \u00d7 8) \u00f7 2
76: (4 + 2) \u00d7 (8 \u00f7 2)
77: 4 \u00d7 2 + 8 \u00d7 2
78: (4 \u00d7 2) + 8 \u00d7 2
79: 4 \u00d7 2 +(8 \u00d7 2)
80: (4 \u00d7 2) + (8 \u00d7 2)
81: 4 \u00d7 (2 + 8 \u00f7 2)
82: 4 \u00d7 (2 + (8 \u00f7 2))
83: 4 + (8 + 2) \u00d7 2
84: 4 + ((8 + 2) \u00d7 2)
85: 4 \u00d7 (8 \u00f7 2 + 2)
86: 4 \u00d7 ((8 \u00f7 2) + 2)
87: 8 + (2 + 2) \u00d7 4
88: 8 + ((2 + 2) \u00d7 4)
89: (8 + 2) \u00d7 2 + 4
90: ((8 + 2) \u00d7 2) + 4
91: 8 + 2 \u00d7 2 \u00d7 4
92: 8 + (2 \u00d7 2) \u00d7 4
93: 8 + (2 \u00d7 2 \u00d7 4)
94: 8 + ((2 \u00d7 2) \u00d7 4)
95: 8 + (2 \u00d7 (2 \u00d7 4))
96: 8 + 2 \u00d7(2 \u00d7 4)
97: 8 \u00d7 2 + 2 \u00d7 4
98: (8 \u00d7 2) + 2 \u00d7 4
99: 8 \u00d7 2 +(2 \u00d7 4)
100: (8 \u00d7 2) + (2 \u00d7 4)
101: (8 \u00f7 2 + 2) \u00d7 4
102: ((8 \u00f7 2) + 2) \u00d7 4
103: 8 \u00f7 2 \u00d7(2 + 4)
104: (8 \u00f7 2) \u00d7 (2 + 4)
105: 8 \u00f7 (2 \u00f7 (2 + 4))
106: 8 + 2 \u00d7 4 \u00d7 2
107: 8 + (2 \u00d7 4) \u00d7 2
108: 8 + (2 \u00d7 4 \u00d7 2)
109: 8 + ((2 \u00d7 4) \u00d7 2)
110: 8 + (2 \u00d7 (4 \u00d7 2))
111: 8 + 2 \u00d7(4 \u00d7 2)
112: 8 \u00d7 2 + 4 \u00d7 2
113: (8 \u00d7 2) + 4 \u00d7 2
114: 8 \u00d7 2 +(4 \u00d7 2)
115: (8 \u00d7 2) + (4 \u00d7 2)
116: (8 \u00d7 (2 + 4)) \u00f7 2
117: 8 \u00d7 (2 + 4) \u00f7 2
118: 8 \u00d7 ((2 + 4) \u00f7 2)
119: (8 \u00d7 2 - 4) \u00d7 2
120: ((8 \u00d7 2) - 4) \u00d7 2
121: 8 \u00f7 2 \u00d7(4 + 2)
122: (8 \u00f7 2) \u00d7 (4 + 2)
123: 8 \u00f7 (2 \u00f7 (4 + 2))
124: 8 + (4 \u00d7 (2 + 2))
125: 8 + 4 \u00d7(2 + 2)
126: 8 + 4 \u00d7 2 \u00d7 2
127: 8 + (4 \u00d7 2) \u00d7 2
128: 8 + (4 \u00d7 2 \u00d7 2)
129: 8 + ((4 \u00d7 2) \u00d7 2)
130: 8 + (4 \u00d7 (2 \u00d7 2))
131: 8 + 4 \u00d7(2 \u00d7 2)
132: (8 \u00d7 (4 + 2)) \u00f7 2
133: 8 \u00d7 (4 + 2) \u00f7 2
134: 8 \u00d7 ((4 + 2) \u00f7 2)
135: 8 \u00d7 (4 - 2 \u00f7 2)
136: 8 \u00d7 (4 - (2 \u00f7 2))
4*7-12+8=24
4乘以7 加8 减12
4*7+8-12=24
绛旓細136+39 + 25 x32 =136+39+800 =975
绛旓細26脳4=104 125梅5=25 104-25=79 缁煎悎绠楀紡锛26脳4-125梅5 =104-25 =79锛庢晠绛旀涓猴細104锛25锛79锛26脳4-125梅5锛
绛旓細2+4脳7-6=24 2脳7+4+6=24
绛旓細270闄や互锛3鍔6锛変箻2-10
绛旓細3棰 锛1锛90-55=35锛35梅5=7 浠庝笂涓ゅ紡鏉ョ湅缁煎悎鍚庯紝瑕佸厛绠楀噺娉曞啀绠楅櫎娉曪紝鎵浠ヨ鐢ㄦ嫭鍙 锛90-55锛壝5=7 锛2锛42梅7=6锛6+2=8 42梅7+2=8 锛3锛2脳4=8锛40梅8=5 鍦ㄥ悓绉嶈繍绠椾腑锛岃鍏堢畻鍚庨潰鐨2脳4锛屼篃瑕佺敤鎷彿銆40梅锛2脳4锛=5 锛4锛34+16=50锛76-50=26 涓庯紙3锛夌浉鍚屻...
绛旓細瑙ｏ細20-5=15 360梅15=24 缁煎悎绠楀紡鏄細83+360梅锛20-5锛=107
绛旓細锛360梅20锛-锛240梅20锛=6
绛旓細锛1锛缁煎悎绠楀紡涓猴細 锛2锛夌患鍚堢畻寮忎负锛
绛旓細瀹氫箟锛氬惈鏈夌瓑鍙封=鈥濄佽〃绀虹浉绛夊叧绯荤殑寮忓瓙锛屽氨鏄瓑寮/绠楀紡銆傜敤杩愮畻绗﹀彿杩炴帴鏁板瓧鑰屾垚鐨勫紡瀛愩備緥濡5脳2梅(10-9)=10銆傝繍绠楁硶鍒欙細濡傛灉鍙惈鏈夊悓绾ц繍绠楋紝搴斿綋鎸夌収浠庡乏鍒板彸鐨勬搴忚繘琛岃繍绠椼傝繖灏辨槸璇锛屽彧鍚湁鍔犲噺娉曪紝鎴栬呭彧鍚湁涔橀櫎娉曠殑娣峰悎杩愮畻锛屽畠浠殑杩愮畻椤哄簭鏄粠宸﹀埌鍙充緷娆¤绠椼傚湪涓涓畻寮忎腑锛濡傛灉鏃...
绛旓細鏍规嵁32闄や互4绛変簬8,45鍑8浜37鍒楀嚭涓涓患鍚堢畻寮銆32梅4=8 45-8=37 绠楀紡鏄細45-32梅4 =45-8 =37
