——速算达人的摇篮，让数学学习变得简单、有趣、高效！
3.4×2.2085= 7.7658×1.8= 4.1×2.5372= 9.2561×7.5= 5.9806×6.3= 8.6×1.3172= 5.3062×9.3= 8.3×1.8036= 6.0203×4.2= 9.2×1.3185= 4.7541×4.2= 3.0319×9.7= 8.1×1.8484= 2.5×2.7299= 4.7221×7.7= 1.8984×7.2= 6.3012×8.5= 4.9676×5.8= 5.7354×3.4= 2.3826×9.1= 9.0426×6.6= 7.2×1.4683= 4.7821×6.2= 2.6124×9.3= 6.9×1.4799= 1.5837×4.6= 7.9×1.2418= 5.1431×3.6= 8.7553×9.2= 4.7369×1.9= 5.8×1.8383= 5.5×1.5541= 9.7×1.5907= 9.9801×4.6= 8.9×1.7531= 7.5548×1.2= 1.7424×8.5= 3.2059×2.5= 4.9×1.5591= 9.3852×1.8= 3.4079×7.6= 8.7×1.7867= 7.2113×1.3= 3.3×1.9751= 7.0951×1.8= 7.0445×4.1= 4.2755×3.1= 2.8×3.3379= 3.9957×5.9= 5.2×1.6821= 8.9×1.1454= 2.3×3.7042= 9.8×1.3695= 2.8×3.7167= 3.0881×5.5= 9.9×1.0295= 2.1377×8.6= 1.3178×1.4= 7.6784×6.4= 5.7×1.9222= 2.8×3.8761= 1.1×9.2689= 2.2456×1.8= 5.6×1.4006= 6.9×1.4178= 4.3496×6.5= 4.6×1.0451= 5.0406×4.7= 8.7×1.9794= 6.7×1.4389= 2.5293×2.6= 6.6×1.6307= 5.5×1.5358= 8.6×1.5536= 1.8971×1.1= 9.5×1.0391= 4.2×2.2348= 1.5805×2.9= 8.3029×5.8= 3.4444×7.9= 1.4×1.3278= 5.3713×1.9= 5.8×1.7868= 8.8787×8.8= 8.3925×3.9= 7.4×1.0349= 8.1×1.3852= 2.4×1.4418= 5.9×1.7078= 3.1548×6.3= 4.2495×7.8= 9.4783×7.3= 2.6503×4.4= 9.9798×3.2= 6.1992×6.4= 9.4×1.2802= 3.9×1.9927= 4.4×2.1551= 8.6931×5.4= 3.8831×6.9= 3.9×2.3454= 4.2×1.7591= 7.2×1.7704= 3.1×1.2584= 1.6057×8.8= 3.2262×8.8= 1.4×2.9299= 4.5176×4.9= 6.7262×2.8= 8.7597×8.3= 2.1716×1.4= 6.5811×9.7= 3.9×1.4143= 4.5×2.5362= 1.0142×8.9= 8.1307×1.2= 3.1×2.3401= 3.1188×9.6= 5.7313×5.4= 3.7×2.3975= 5.7327×5.2= 6.1551×2.5= 8.9501×1.5= 1.4931×7.3= 9.4×1.7643= 6.3×1.1233= 2.4799×4.5= 2.2×2.4131= 3.2561×6.5= 5.3649×3.5= 4.9×2.0233= 7.9795×8.8= 1.8×1.6778= 3.5981×8.4= 5.1367×8.3= 6.8402×9.1= 6.6×1.2171= 3.6×1.0014= 3.2×2.2901= 8.7315×5.7= 3.6001×9.7= 7.6×1.0969= 6.6575×2.9= 4.7425×9.9= 3.9235×9.1= 7.0596×1.4= 6.7072×2.1= 7.9071×1.3= 2.4344×3.2= 7.1×1.2908= 5.4553×3.9= 5.4537×6.6= 3.8×1.7909= 1.6×5.4339= 2.8958×1.3= 3.3232×2.6= 2.7×3.6968= 4.3×2.4581= 7.9×1.8682= 8.3373×3.2= 4.0481×4.6= 1.2×4.6729= 1.2×4.7525= 8.8×1.4581= 2.2873×5.8= 9.1061×2.8= 5.9×1.8421= 9.4×1.1435= 7.8339×4.8= 9.6313×1.7= 9.0739×7.6= 8.3428×3.9= 8.9156×5.8= 6.1×1.1891= 9.3×1.3889= 8.3435×8.9= 1.7071×2.3= 3.7178×2.9= 4.7×2.6224= 8.1×1.2698= 1.8723×4.9= 3.5122×9.3= 5.6193×4.1= 6.6338×6.3= 7.5539×9.1= 5.6687×7.9= 5.9546×6.4= 1.8289×9.7= 5.1761×3.7= 1.9×2.1656= 8.6×1.5593= 7.7×1.4518= 4.9×1.9401= 2.0395×6.3= 7.5×1.5081= 3.9×1.5838= 4.9×1.3446= 3.9514×7.9= 1.2×1.7228= 2.4×3.5281= 2.6598×7.1= 2.2968×1.2= 3.3×3.4606= 7.0088×4.5= 3.6×2.5567= 4.9×1.8047= 2.4554×4.9= 9.8×1.3686= 6.7755×1.9= 5.2889×7.6= 4.5×2.7221= 4.8×1.6714= 7.6654×8.7= 5.1×1.3998= 2.3×3.9348= 8.1911×5.8= 9.3×1.1384= 2.4×2.7257= 5.3×1.4443= 2.8×1.7146= 4.1329×1.2= 4.5771×6.8= 7.2×1.4454= 5.2×1.2855= 5.6906×7.6= 3.3255×9.7= 9.4432×6.8= 3.0219×6.6= 4.8×2.3989= 7.8×1.5546= 1.3×3.6575= 1.3×5.4854= 9.4×1.0752= 3.2×1.1022= 3.8×2.8301= 4.4×1.0991= 7.2×1.3753= 4.8067×5.3= 2.4×1.9893= 3.3×3.7165= 1.5×2.0152= 8.8×1.6529= 2.3107×6.9= 2.4×4.7944= 5.8401×9.7= 7.4398×1.5= 3.8×2.5022= 8.2×1.0236= 3.1×2.1481= 8.6911×7.9= 5.5637×5.5= 4.6641×3.5= 1.6×4.2499= 1.9×5.6266= 8.8×1.2023= 6.6×1.0063= 6.6588×4.7= 9.6×1.2031= 6.2572×1.4= 8.7×1.2067= 6.4143×6.3= 4.2549×3.9= 1.4×3.9475= 8.8816×3.7= 9.0546×1.3= 8.7×1.1909= 8.7859×4.1= 8.7948×6.6= 6.8×1.8184= 1.2×4.1516= 3.4265×5.2= 4.9751×6.8= 6.9×1.5217= 1.5161×1.6= 7.7246×1.7= 3.6×2.0131= 4.2×2.9101= 5.4688×4.4= 9.3732×2.2= 8.1653×9.3= 5.3245×8.8= 5.1×1.2357= 2.4823×1.8= 7.6302×9.7= 9.4×1.7122= 4.1×2.4072= 4.8802×3.2= 5.1×1.2007= 5.8214×2.8= 2.2×1.9369= 6.8331×9.2= 5.5×1.1266= 7.7×1.1276= 1.4035×4.1= 3.4×1.1226= 7.8×1.3292= 6.7174×5.3= 6.7×1.1319= 4.9×2.2402= 7.2×1.1481= 8.6×1.7212= 8.5×1.8361= 9.6×1.5448= 2.5295×5.3= 9.9524×3.3= 9.1×1.0581= 5.3046×3.3= 3.4886×3.1= 6.6207×3.5= 2.4×4.1177= 1.7×2.0771= 6.8329×3.2= 6.3×1.1942= 4.9281×1.2= 4.5513×9.5= 5.6×1.6037= 6.4096×5.4= 2.4386×5.6= 3.2417×6.6= 8.4537×3.5= 5.8×1.8395= 1.8787×9.7= 1.3×3.0741= 2.1×1.6406= 1.2×7.0117= 8.1×1.1213= 2.3×4.9601= 5.3688×4.8= 2.9×2.5529= 9.6×1.5312= 6.1081×8.1= 9.9×1.8862= 3.7701×7.5= 8.2037×1.7= 6.0968×5.1= 7.9×1.7686= 7.9×1.6214= 1.4541×4.4= 5.8×1.6854= 4.9663×7.7= 9.3×1.4886= 8.4×1.1648= 3.7891×3.2= 1.3101×3.2= 8.9×1.4561= 3.7×1.4383= 1.2×6.6761= 6.4804×7.2= 2.5×1.0369= 5.5791×3.2= 6.3×1.5262= 1.5×3.3821= 5.4437×6.6= 1.3×3.6531= 4.9151×6.2= 9.8×1.5044= 5.6491×9.5= 6.7×1.3433= 3.4×2.9565= 5.8116×1.8= 3.0493×4.9= 1.8×2.5191= 8.2×1.2122= 4.5027×2.5= 9.5847×6.2= 7.2512×5.3= 7.1×1.9728= 7.1×1.3807= 8.2×1.5736= 8.9383×8.9= 8.5×1.7955= 8.5×1.2859= 4.8×1.3781= 4.8×1.9694= 2.5114×4.5= 8.8×1.0069= 8.7×1.0064= 1.5851×8.7= 5.6186×6.7= 5.2946×5.5= 1.7×2.4885= 8.9×1.9341= 8.1171×6.2= 5.7×1.2678= 9.8×1.4432= 8.6×1.9643= 8.8×1.9712= 8.4×1.9652= 2.8702×8.1= 2.1066×4.5= 5.5×1.3867= 1.4×4.7281= 1.4072×1.2= 3.4104×8.3= 2.2293×3.7= 1.6×1.1746= 2.8453×4.4= 4.7761×4.4= 6.5×1.0028= 4.0017×4.5= 3.4859×8.5= 6.7786×7.5= 3.5305×6.6= 6.6×1.7963= 9.1151×2.9= 5.9×1.5391= 1.3261×7.6= 9.2101×4.3= 2.1×1.3792= 3.9×1.8983= 5.9×1.9762= 5.0426×7.7= 3.6621×1.5= 2.2013×7.4= 1.0661×5.6= 3.4901×5.1= 7.2×1.6074= 5.1×1.7179= 6.9×1.7355= 6.9658×5.3= 9.3035×3.6= 3.5×2.2881= 6.1×1.9811= 9.8549×1.2= 8.2×1.3283= 3.8347×9.6= 8.5×1.0321= 8.3×1.7485= 2.4×4.3091= 2.5×1.5445= 5.6941×1.8= 9.1×1.0008= 2.2×4.4321= 3.5689×6.9= 2.3824×4.6= 6.7×1.2627= 9.6×1.2693= 7.3×1.3695= 8.3×1.3691= 3.8×1.2756= 4.5×1.2786= 4.6415×2.6= 3.4418×7.2= 8.4×1.6019= 1.7493×3.1= 2.3×3.2333= 2.3496×2.1= 3.9×2.6711= 8.4211×6.9= 1.1×3.2603= 3.5×2.3384= 9.2×1.9761= 1.9×3.9893= 2.4499×2.9= 4.8×2.7617= 6.8×1.3186= 8.2×1.6021= 7.7512×6.1= 6.5502×6.9= 8.7×1.2413= 7.2×1.1842= 1.2808×2.9= 4.1×1.3717= 8.7×1.5105= 3.9×1.6174= 8.2×1.8631= 4.9997×1.5= 9.9024×5.6= 7.8249×8.8= 5.2×1.6982= 7.6×1.1491= 4.1897×6.6= 7.8691×1.7= 1.2855×3.5= 8.0281×9.7= 4.5×2.6743= 2.9919×7.4= 4.7757×5.2= 6.3×1.4505= 8.3×1.2783= 4.8×1.2051= 5.6718×4.4= 6.5923×2.5= 1.6712×9.6= 5.6×1.0436= 4.1919×4.8= 5.8×1.5118= 7.3×1.8482= 8.4×1.8072= 5.5×1.1053= 3.0544×2.8= 8.4887×9.6= 6.2434×1.1= 2.2564×3.2= 6.2403×3.4= 5.7×1.1131= 5.7705×6.9= 3.5617×9.3= 8.4×1.8285= 3.8×2.3074= 9.6×1.9497= 2.6274×9.7= 3.6×1.3707= 7.9×1.6947= 7.6715×2.8= 5.4217×1.4= 1.5546×6.7= 4.3×2.2642= 5.0121×5.5= 7.0978×7.4= 9.6×1.8532= 6.4108×7.1= 2.9737×6.7= 2.3568×2.8= 3.3×3.8715= 3.5122×1.1= 5.3508×4.4= 1.4791×4.7= 6.5×1.3512= 6.6×1.8022= 1.7881×6.4= 5.4123×7.2= 9.6×1.8435= 4.3218×4.4= 1.5404×6.4= 5.3×1.0781= 8.4×1.4683= 7.4×1.4601= 8.3782×7.9= 4.7×2.2703= 2.1033×6.5= 1.7421×5.5= 3.8367×6.9= 6.3×1.7334= 2.5×4.2096= 8.4×1.5275= 9.2368×9.2= 3.2937×4.6= 7.7951×1.6= 9.1×1.9462= 4.6347×4.7= 2.1004×8.2= 1.1896×6.7= 2.7611×5.7= 8.8×1.4977= 5.1×1.0814= 6.9×1.8237= 4.7906×9.4= 2.7×3.4692= 5.4×1.8867= 9.3×1.1591= 6.7×1.5247= 7.2975×3.1= 3.7543×4.6= 4.4861×5.2= 4.5×2.4021= 7.0127×1.9= 6.8207×1.6= 1.7×2.3851= 7.1987×1.4= 9.4×1.7708= 8.1×1.0366= 7.5634×1.4= 2.0475×6.7= 1.5231×7.2= 9.0707×7.8= 9.1×1.2019= 8.4×1.2615= 4.4884×1.4= 4.1931×8.1= 8.6075×9.4= 7.7775×8.9= 1.8×5.4857= 7.9791×3.9= 9.6263×6.9= 1.4×1.2007= 5.6×1.2152= 8.1×1.1608= 9.1×1.8408= 9.3×1.7304= 5.1×1.5065= 3.9×1.3903= 4.4×2.4137= 2.9663×7.7= 8.1122×9.5= 6.8076×2.2= 1.1×6.9328= 3.3×1.8042= 2.1141×3.7= 8.1×1.4725= 5.1×1.0109= 1.2×6.2579= 3.5524×1.9= 8.3×1.3098= 2.9×1.5769= 6.5×1.0066= 2.5×1.0103= 5.7791×7.1= 4.7×2.2484= 1.9×3.5885=