四年级数学脱式计算练习400题

欧阳数创编欧阳数创编欧阳数创编欧阳数创编649+480+48uwIdou• 624-26x19 637+18x12472-10x36448+52-4时间：2021.03.02创作：欧阳数563-14x13543-26x18403-64-4403-64-4543-468-18576+168-8923+550-55923+550-55553+28x6508+52-4687+620-20806-105-5176+12x28145+80-2145+80-2219+37x18262+190-19318-234-18591-418-22753+665-19409+13x4552+56-4677+150-5953-703-37582+312-13717+484-22451+240-15271+240-2045+13x20673-480-16209+35x15645-528-22389-14x7389-14x7535+192-12697-24x23815+448-14885-504-2492+27x28833+741-39537-299-13280+156-13473-18x1028+21x21537+20x20549+390-30833+741-39428-18x4804-72-2520-110-5131-12x4558-23x9558-23x9450-275-25829+372-12621+12x18499+170-10669-12x19537-14x6522+21x3499+120-6257+16x42924+672-24971-312-13630-120-4203-10x9605-12x42212+10x3618+434-31141-99-3137+25x18642-588-49939-637-49195+27x14630-572-44307-12x7840-810-3029+41x2229+33x1455+22x1955+22x19344-10x15718-620-20801+684-57182+10x25493-432-27435+35x9435+35x9945-384-32678-25x19283-12x20751-714-4281+72-2129+12x57798+493-17498-18x8111-41x2719-31x14301-11x9429+21x8429+21x8657+300-12693-32x12334+150-1584+14x17321+190-19213+150-15469+13x4538+46-2254+10x2254+10x2682-300-12174+32x19712+357-21531-19x15729-17x21623-27x4387+20x16718-31x20699+525-15125+24x23860-372-12917-675-45952+735-35677-24x23943-24x37765-630-3559+20x28172-110-272+126-2367+16x14467-420-30777+150-15943-888-37709-273-21290+99-954+19x26885-21x2443+12x20593-28x1554+14x34291+14x7398-16x6304-273-21880-15x8381+14x13847-264-8988-376-8734-25x11474+99-9474+99-9469-21x21411-266-1482+42x21855-30x8256-11x11889-26x23117+24x22661-247-19379+378-27585-63-3521-13x4401-19x20121+10x30102-100-2458+444-37951-650-26572-420-35929-672-4270+38x2813-684-57700-25x6625-105-5117+110-2653+552-23617+572-44292+98-7789+759-23537-84-630+65x2208+14x7312+13x8721-168-6636-210-7941+376-8808-195-15982-480-152+50x2160-65x2314-12x10927+688-16817-378-27952+141-3847-448-14151-104-8563-182-13561+12x32730+180-10301-99-9495-44-4261-48-4295+84-7634-572-22806-52-4661-30x15210+10x5847-26x11430+14x25485+120-5131+17x14165-62x2165-62x2651+280-10412-15x20141+10x19913+315-9140+102-2803+378-2751+10x16340-240-15480+399-19557-12x10776-12x23575-490-35664+648-36383-18x18766-703-1930+54x2626-13x10249+48-4249+48-4532-17x18278+210-21314+26x11655-15x4823-31x2171+10x4775-20x29287+12x488+38-288+38-2246+18x30994-23x3267+13x26869+234-6515+306-1842+15x2542+15x25331-156-12940+132-3305+252-21419+418-38667+56-2748-180-10454-11x37369-238-14682-18x3685+14x35134+10x7570+15x2570+15x2789+609-21697-30x12136+27x25561+414-18952-900-25784+675-25784+675-25584-25x630+16x28902+620-20468+468-26349-39-3833-528-22268+15x9541+468-26481+192-12148-122-2298+275-25677677-57-3131+25x16818-609-21403-12x3631-189-7394+153-9484+209-11346+28x11796-22x12426+12x16914-481-3794+17x4921-162-9852+44x3759-132-4329+16x5329+16x5806-14x14786-540-3090+10x2290+10x22503-209-11867-36x10721-490-14489-400-20933-31x20831+360-10411-187-11823-62-2738+350-25706+209-1152+36x25991-13x25871+352-32618+20x11165-124-2669+207-9454-99-9134-84-3824-462-2218+18x26718+154-7310+13x3361+25x7651+525-21242-10x4576+483-21947-17x5947-17x5738+720-24476+30x12516+480-4850+28x3367+43x12916-40x8916-40x8787-30x21493-230-10778778-29x2569+336-12748-21x17956-30x13768-30x24507+36x10312-65-5312-65-5508+13x23381+187-17613-98-7613-98-7952-714-34597-28x12521-315-15674+40x8495+308-14103+52-2103+52-2789-195-13269+143-11264-240-20830+324-18469+400-20199+13x27372-330-22319-39-3285-104-8812-24x17147+100-2643643-98-7876+476-17879+250-2558+38x2592-22x13941-736-32558-13x23531-25x16450-17x17349+14x5299-10x23879-32x20786+663-39288+209-19740-22x7573-100-5818+220-11392-11x17651+525-21335-10x12451-375-25889-250-2597+50x2511+175-759+18x18135-38x2536-25x7851-34x9851-34x9408-364-28600+128-8362+21x22580-12x46698+630-45891+