1、 口 算1, 1740 2, 100633, 3.21.68 4, 2.80.4 5, 147.46, 1.920.04 7, 0.325008, 0.654.35 9, 105.410, 420 11, 3.520012, 1.50.06 13, 0.751514, 0.40.8 15, 40.25 16, 0.361.54 17, 1.019918, 42035 19, 2512 20, 1350.5 题21, 3/4 + 1/4 =22, 2 + 4/9 = 23, 3 - 2/3 =24, 3/4 - 1/2= 25, 1/6 + 1/2 -1/6 =26, 7.5-(2.5+3.8)
2、=27, 7/8 + 3/8 = 28, 3/10 +1/5 = 29, 4/5 - 7/10 =30, 2 - 1/6 -1/3 = 31, 0.511732, 32.819 33, 5.21.3 34, 1.60.4 35, 4.90.7 36, 15 37, 612 38, 0.870.49 39, 174040, 10063 41, 3.21.6842, 2.80.4 43, 147.4 44, 1.920.04 45, 0.3250046, 0.654.35 47, 105.448, 42049, 3.5200 50, 1.50.06 51, 0.751552, 0.40.8 53,
3、 40.25 54, 0.361.54 55, 1.0199 56, 42035 57, 2512 58, 1350.5 59, 3/4 + 1/4 =60, 2 + 4/9 = 61, 3 - 2/3 = 62, 3/4 - 1/2= 63, 1/6 + 1/2 -1/6 = 64, 7.5-(2.5+3.8)= 65, 7/8 + 3/8 = 66, 3/10 +1/5 = 67, 4/5 - 7/10 = 68, 2 - 1/6 -1/3 = 69, 0.5117 70, 32.819 71, 5.21.3 72, 1.60.4 73, 4.90.774, 15 75, 61276, 0
4、.870.49 77, 1740 78, 10063 79, 3.21.6880, 2.80.4 81, 147.4 82, 1.920.04 83, 0.3250084, 0.654.35 85, 105.4 86, 420 87, 3.5200 88, 1.50.06 89, 0.7515 90, 0.40.8 91, 40.25 92, 0.361.54 93, 1.019994, 4203595, 2512 96, 1350.5 97, 3/4 + 1/4 =98, 2 + 4/9 = 99, 3 - 2/3 = 100, 3/4 - 1/2= 101, 1/6 + 1/2 -1/6
5、=102, 7.5-(2.5+3.8)= 103, 7/8 + 3/8 = 104, 3/10 +1/5 = 105, 4/5 - 7/10 =106, 2 - 1/6 -1/3 = 107, 0.5117108, 32.819109, 5.21.3 110, 1.60.4 111, 4.90.7 112, 15 113, 612 114, 0.870.49 115, 1740 116, 10063 117, 3.21.68118, 2.80.4 119, 147.4120, 1.920.04 121, 0.32500122, 0.654.35 123, 105.4 124, 420 125,
6、 3.5200126, 1.50.06 127, 0.7515128, 0.40.8 129, 40.25 130, 0.361.54 131, 1.0199132, 42035133, 2512 134, 1350.5 135, 3/4 + 1/4 = 136, 2 + 4/9 =137, 3 - 2/3 = 138, 3/4 - 1/2= 139, 1/6 + 1/2 -1/6 = 140, 7.5-(2.5+3.8)= 141, 7/8 + 3/8 = 142, 3/10 +1/5 = 143, 4/5 - 7/10 =144, 2 - 1/6 -1/3 = 145, 0.5117 14
7、6, 32.819147, 5.21.3 148, 1.60.4 149, 4.90.7150, 15 151, 612 152, 0.870.49 153, 2 + 4/9 = 154, 3 - 2/3 = 155, 3/4 - 1/2= 156, 1/6 + 1/2 -1/6 = 157, 7.5-(2.5+3.8)= 158, 7/8 + 3/8 = 159, 3/10 +1/5 = 160, 4/5 - 7/10 = 161, 2 - 1/6 -1/3 = 162, 0.5117163, 32.819164, 5.21.3 165, 1.60.4 166, 4.90.7 167, 15
8、168, 612169, 0.870.49 170, 1740 171, 10063 172, 3.21.68173, 2.80.4 174, 147.4175, 1.920.04 176, 0.32500 177, 0.654.35 178, 105.4 179, 420 180, 3.5200181, 1.50.06 182, 0.7515 183, 0.40.8 184, 40.25 185, 0.361.54 186, 1.0199187, 42035 188, 2512 189, 1350.5 190, 3/4 + 1/4 = 191, 2 + 4/9 =192, 3 - 2/3 =
9、193, 3/4 - 1/2= 194, 1/6 + 1/2 -1/6 = 195, 7.5-(2.5+3.8)=196, 7/8 + 3/8 = 197, 3/10 +1/5 = 198, 4/5 - 7/10 =199, 2 - 1/6 -1/3 =200, 394=201, 519= 202, 777=203, 8743= 204, 3045= 205, 10610= 206, 1783=207, 789= 208, 1.5736=209, 3.52100=210, 3.548=211, 43.874= 212, 1633= 213, 7247= 214, 43.78=215, 46.9
10、8= 216, 789= 217, 2500.4= 218, 245=219, 378= 220, 1045=221, 8474= 222, 842= 223, 5.7892= 224, 782= 225, 2450= 226, 3061030= 227, 1326= 228, 3501000=229, 3174=230, 1.526= 231, 1250.8= 232, 3027830=233, 2648= 234, 5.769= 235, 38750= 236, 1.8540100=237, 9374= 238, 2854= 239, 1343= 240, 1258=241, 254= 2
11、42, 30052=243, 542= 244, 1.359=245, 158=246, 1254=247, 8.4561000= 248, 64016= 249, 393= 250, 2420= 251, 323= 252, 4816= 253, 128= 254, 273= 255, 5614= 256, 248= 257, 142= 258, 8345= 259, 56080= 260, 9624= 261, 4020= 262, 4030= 263, 3726= 264, 7639= 265, 60559= 266, 3023= 267, 128= 268, 2732= 269, 48
12、27= 270, 450020= 271, 7315 = 272, 120600 = 273, 200360= 274, 6800400= 275, 280270= 276, 42500= 277, 600040= 278, 51280= 279, 4.32.7 280, 0.750.25 281, 40.26 282, 0.352.7 283, 4.61.9 284, 0.830.3 285, 30.05 286, 7.23.8 287, 0.070.6 288, 1.390.39 289, 105.4290, 4.7+2.3=291, 6.92.5=292, 63.4=293, 1.40.
13、5=294, 0.020.5=295, 6.37=296, 0.750.25=297, 4.80.3=298, 0.5628=299, 0.640.8=300, 3.624=301, 7.2+12.8=302, 12.84=303, 12.55=304, 1020=305, 8.6510=306, 3.080.01=307, 6.90.1=308, 2.40.8=309, 9.60.8=310, 4.950.9=311, 0.325100=312, 0.560.7=313, 3.280.1=314, 7.20.1=315, 0.250.4=316, 12.5=317, 3.20.04=318,
14、 1.22.5+0.82.5 319, 8.91.25-0.91.25 320, 12.57.40.8 321, 3.4-1.4=322, 0.728-0.24=323, 0.89-0.25=324, 19.9+11.1=325, 1+3.89=326, 7510=327, 0.87=328, 1.328=329, 10.32=330, 0.728-0.24= 331, 0.8+0.18= 332, 0.89-0.25= 333, 1-0.98= 334, 0.048+0.52= 335, 5400= 336, 19.9+11.1= 337, 1871000= 338, 1+3.89= 339
15、, 0.08110= 340, 7510= 341, 0.960.8= 342, 3.50.2= 343, 9.2-6= 344, 8500500= 345, 3.2-3.2= 346, 3.7+2.3= 347, 25100= 348, 3.2-0.32= 349, 2+2.8= 350, 380-290= 351, 0.35+0.5= 352, 0.35+0.63= 353, 350070= 354, 3.1+3= 355, 3.8+0.38=356, 7500250= 357, 3.8+1= 358, 0.95-0.05= 359, 450+780= 360, 3.1+0.3= 361,
16、 3+0.3= 362, 6309= 363, 4.5-0.4= 364, 9.5-5= 365, 3309= 366, 3.5+2.4= 367, 1-0.95= 368, 0.3+0.27= 369, 0.47+0.13= 370, 4.5+4= 371, 4-0.6= 372, 0.95+0.05= 373, 2.5+3.2= 374, 0.74+0.16= 375, 23100= 376, 9.8-4.8= 377, 48040= 378, 0.53100= 379, 5.1+2.3= 380, 12580= 381, 7012=382, 0.25100= 383, 3.4-2.8=
17、384, 0.6-0.37= 385, 0.05210= 386, 10+0.08= 387, 1-0.75= 388, 0.51000= 389, 0.82+0.3= 390, 13.5+6.5= 391, 3.05100= 392, 1.2-0.8= 393, 21.6-12.6=394, 63100= 395, 0.83-0.5= 396, 0.76+0.14= 397, 801000= 398, 2.7+0.4= 399, 0.72-0.43= 400, 30100= 401, 0.92-0.2= 402, 3.5+4.8= 403, 3.5+2.4= 404, 5+0.07= 405
18、, 1-0.61= 406, 0.47+0.23= 407, 0.25+0.75= 408, 3.7+0.33= 409, 0.51+0.33= 410, 1-0.6= 411, 7.2+0.8= 412, 7.82+0.3= 413, 8.8-6.7= 414, 9.5-7.3= 415, 1-0.95= 416, 3.4-2.8= 417, 0.96-0.35= 418, 0.350.6= 419, 3.080.01= 420, 4.951000= 421, 6.90.1= 422, 0.40.5= 423, 2.40.8= 424, 10.89= 425, 9.60.8= 426, 0.
19、1082= 427, 4.950.9= 428, 9.650.1= 429, 0.325100= 430, 2.58= 431, 0. 560.7= 432, 0.1254= 433, 3.280.1= 434, 3.90.13=435, 7.20.1= 436, 0.010437, 0.4310= 438, 53.4100= 439, 278.61000=440, 9.210= 441, 0.60.9= 442, 3.40.3= 443, 50.6= 444, 4.52= 445, 0.030.5= 446, 1.60.3=447, 0.233= 448, 5.12= 449, 90.3=
20、450, 7.13= 451, 1.56= 452, 8.44= 453, 0.655= 454, 0.933= 455, 2.79= 456, 3.82= 457, 5.40.8= 458, 4.62= 459, 1.80.3= 460, 4.27= 461, 9.60.6= 462, 6.43.2= 463, 110.11= 464, 102.5= 465, 140.2=466, 0.313= 467, 10.55= 468, 14.70.7= 469, 200.5= 470, 9.61.2= 471, 3.442= 472, 650.3=473, 9.911= 474, 2.82= 47
21、5, 0.963= 476, 1740477, 10063 478, 3.21.68 479, 2.80.4480, 40.25 481, 0.361.54 482, 1.0199 483, 42035 484, 2512 485, 1350.5 486, 0.40.8 487, 3/4 + 1/4 = 488, 2 - 1/6 -1/3 = 489, 1.60.4 490, 4/5 - 7/10 =491, 4.90.7492, 2 + 4/9 = 493, 3 - 2/3 = 494, 3/4 - 1/2= 495, 7/8 + 3/8 = 496, 3/10 +1/5 = 497, 0.5117 498, 32.819499, 5.21.3 500, 15