1、25 3525= (60 (1255)8= 25174= (25125)(84)=83= 52892= 1255 9125=4350 428= 604=125 25 373.乘法交换结合律(二): 241257216 48125 64 2536 25 2516 25284.乘法分配律(一):34723428= 748752= 35376537= 8582+8215= 2597+253= 76252524= 16171623= 27362764= 73363627= 64233623= 43365736= 19671933= 57354335= 187272182= 46464654= 3169
2、3131 341334 3=5.乘法分配律(二):389938 75 29975 10299102 3993999128 128 2799 34199 3599356.乘法分配律(三):(880 )= (804)25= 8(1259)= (204)25= 32 (2003)= (12517)8= (1002)99=(1001)=(404)= (25100) 99(1001)= (12540)8=(12525)8= 99 (1007)= 8 (1257)= (3025) 4=7.乘法分配律(四):46102101 103 1071588 8899 3941 201 30243138.商不变的规律
3、:300 4000 2405 600 320050 40025 15025 80025 2000 9000125四、混合运算 (延伸阅读:小学四年级数学上册复习试题)672672127= 987(345298)65= 210520(240227)= 340240205 = 30(320170)90 = 458(8528)23=630840(240212)= 408512(178283)= 864(2723)12= (10512635)25= 24014033602605= 10448+27216= 3565520= 24018030 4503020146(3442070)= 624(2714)
4、4= (77217)691= (165655= 840(120195)15= 557(18626)375(2510)15= 1527-200 (324-285)1226=(1604812)4= 336(3629)6= 62(3001455)=3550= (3654984)24= 15090(6752)=18236(126) 640(96-80)4四年级计算题大全500+道(修正版)3361125233565361165825681331 336215205312063748191214 32568245 2112630212 135325321114184208 516113524158332
5、6416109204118210119 6618030720360 9204078060625837 8501726 960 544898420 780206907505052092070444480 67275489757618173 3.771.85.220.39.990.02 4.670.92.441.6666.1 5.66.54.882.95.614.3 8.92.45.5559.77 1.3845.18.78832.661 590.24.2681.7575.7 9.462.8517.86.41.54.9 11736910.16270 59.313320.82-43.1915.36 7
6、0.253067.50.567.32 9.141602.4825.20.04 136 52315215235321193326165306260 30365224167488406723.770.0 284035 63031 96119 198082812.3 1.235.681.237.20.75.61.137.84.52.5 6.082.287.21.254.54.43.25157.567.3 44.19.3642.52.50.9913.634.736.11.9 5689307544715989.4294 6896183722.03733.81.72.6 32.80.3955676.0.7
7、42346133207210+2865444764321350930864 69459816098791005070793628932000700 3.22.460.6724.2104 1.713.88.40.13450 6.7902.72313.1315.24291173842 0.2763646 19.95+132.470.0450.315.3041 1355 1086 8312 7210 1389 82403 12689 20332 31225 33621 85839 91827 88837 64532 43728 11736 65 0.16270 59.313 320.82-43.19
8、 15.3612 70.25 3067.5 0.567.32 9.14160 2.4840 25.20.04 1361536 32565 52315 57158 36215 2942960 52040 92023 84024 70444 48032 21 75458 89739 62426 57618 17317 13545 10825 54312 47210 13854 12689 32 31225 43728 82403 20824 36137 40623 46023 30556 62478 46589 35356 45240 47985 33621 85839 91827 88837 6
9、4532 43246 96623 73179 98028 82834 61888 37245 32842 39556 76574 .加法交换结合律: 4825175 5781432257 1288972 357288143 129235171165 37852773 16728933 58394261 7534125366 12575320 15338162 16332137268 158395105 82219778 8.商不变的规律: 30025 4000125 2405 6002525 80025 2000125 9000混合运算 6726727 98765 210(240227) 34
10、02405 3090 458(8528)23 (240212) 408512(178283) 86412 (10525 2401403 3602605 1044827216 3565520 2401802 4503 146(3442070) 6244 (7721691 (165655 84015 557(18626)23 37515 (65934)+(28040)158 (324-285)12 26 (160484 3366 625) 3550 (3624 150(6752) 182(126)4 571256035 848640122800 100789 (947599)7664 36(913
11、27623) (932521)95071363498 723(521504)25 3841223371 (3921)(3966)156(17.7-7.2)3 37.85-(7.85+6.4) 30 28(5+969.9318) 81(72-54)9 960(15003245) 192(5438)674 (13(38) (12+24+80)50 70425 2532125 32(25+125)178101178 8436+6484 7599+275 83102832 98199 1231812 33+85123 50(344)3 25(24+16) 17899+178 7942+79+7957
12、7300254 8100475 7527+1925 31870+13310 4(2565+2528) 10276 5898 2808405 85(95144024)58870(105202) 80400(430087015) 14372727563 81432(135278) (331) 37.4(8.67.246.6) 156107-7729 37.85-(7.85+6.4)2875+96990318 1554(72-58)3 360(126)5 288(2614)8 5006-(502-80) (10525 12 (453816)24 500(240386) 64(8742) 15 (84
13、5153)16 12(4928)7 450(8448 )12 (58+37)(64-95) 178-1456+42 812-700(9+3111) 85+14(14+20826) (284+16)(512-820818) 120-3618+35 (58+37)5) (6.8-6.80.55)8.5 0.12 4.84.8 (3.21.5+2.5)1.6 5.8(3.87-0.13)+4.23.74 32.52-(6+9.7283.2)2.5 (7.1-5.6)0.9-1.15 2.5 5.42.6(3.7-2.9)+0.62 6(12-7.2)-6 127.2-6 0.681.9+0.321.
14、9 (58+370)(64-45) 420+580-642128 (136+64)(65-34523) 48.10.15-10.750.4-5.7 388+(5000-1000) 158+262+138 375+219+381 50012471021 (181+2564)+2719 378+44+114 276+228+353 7755(2187+755) 2214+638+286 8) (12+24+80)(25+125) 88125 10298 78101178 8484 752 12318123399+178 794 810075 16800120 301002100 32000400
15、497007002 5 480025 2356(1356721) 1235(17801665) 310 428) (181+2564)+2719 25 7524 1384 88125 10276 347+452-416052 5) 95(64-45) 178-14511)85+1426) 120-365) (6.8-6.84.8 (3.21.6 50.6.5(4.8-1.24) 5.83.742.5 (7.1-5.6)2.5 5.4(12-7.2)-6 121.9 420+580-6428 136+623) 15-10.750.4-5.7 18.1(30.2990.23)1 10.15-10.
16、750.4-5.7 996 83= 580 18= 4140 40= 42053485551(155-258419) 7000-34015(6409+2317)68386-(2525+2005)15 3365+183651-2978 (2995+5285)132101-(2260+3200)421141+756872289+8580 5488-36426390 4000-(2580+288016)(2495+353)(500-484) 3640-62515 7560(125-113)+278635.85(1.75+9.825)14.63 5.651.89+9.1424.58+14.615.487240080142 108(8336060) (42048)(375345)(205198)4 460(29183) 1450(169)49070154 774(17+26) 472833 2152490024
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