500道四年级口算

500道四年级口算138-89= 540054= 20194= 550-450= 18000600= 270030=4514= 18万+24万= 89100= 0.82+0.08= 731= 0.6310= 410= 171000= 0.56+0.4= 8025= 1-0.93= 1.25100= 5.6+99= 10025= 90-0.9= 41100= 8800400= 0.1210= 60030= 7.59100= 150+70= 356-98= 1258= 6126= 1280= 1.5100= 84040= 0.125100= 8100= 2.3+3.6= 0.28+0.12= 7.3+2.7= 7.5-3.4= 1-0.35= 3.610= 5.6+2.3+0.7= 5172= 154-73-27= 100025= 24012= 7.06100=7.610= 2.510= 65.8100= 91.051000= 30015= 0.051000=1460= 5400600= 345+298= 0.5+0.4= 0.9-0.3= 0.35+0.43= 2.8-1.2= 0.81-0.19= 9.7-7= 7.8+2.2= 1-0.37= 31052= 4(25+50)= 32.8+19= 0.5117= 24030= 10000.8= 3.06+0.2= 8125= 0.67+1.24= 7-6.28= 8.2-0.01= 9923= 504= 51000= 0.42+9.5= 100.5= 65254= 0.08100= 1.82-0.63= 4.5+1.5= 1-0.63= 231-99= 3.7+2.5= 32+268= 1.3-0.7 = 2.4+0.6 = 799+7= 24-19+24+19= 7.5-2.8= 5.5-3.2= 12062= 910070=4(36-25)= 1-0.2= 4.3+1.5= 300-84-16= 2-1.1 = 145-99= 1025= 3.560= 3.12+5.2= 11.3-8.6= 0.23400= 0.59+0.22=600.5= 2-0.29= 457+198= 756-197= 45+15-45+15= 5.4-2.5-1.4= 0.361.2= 53.30.2= 5.53= 14.5+9.5= 400258= 71.4= 4168= 2.130= 1.2538= 0.9-0.26= 821-202= 0.2550= 30.25= 12516= 7(10+0.5)= (0.18+0.9)9= 16.4-(3.5+6.4)=8.32.50.4= 0.6+0.699= (0.88+0.16)8= 12.6+5.3+6.4= 9.60.45=61.4+64.6= 0.8(0.40.2)= 13.68+10.48= 0.740.001= 5.4-2.5-1.4= 2-0.35-0.65= 6.4+1.07-0.47= 1.5-0.04= 42035= 0.49+0.61= 2.40.2= 0.640.16= 5580= 11.7+2.3= 735-298= 81027= 10-8.25=3201900= 360120= 1.29-0.18= 15(100+3)= 0.6+5.47= 36+54= 7000200= 398+294= 500-12= 25040= 125800= 97-59= 644= 998-299= 240400= 54-15= 1407= 299+455=1560= 9100700= 90050= 17+49= 25+68= 542-298= 152-46= 620-290= 100-79= 860-370= 038= 670-540= 894-399= 68101= 1940= 474= 95-64= 4019= 952= 590+30= 110050=83-25= 997+674= 3201900= 420190= 5500500= 446=71-17= 90060= 60-52= 60-36= 7+75= 1000050= 500-27=6600110= 91-23= 2250= 0346= 12532= 21500= 12504= 439+61= 392+208= 188+702= 15400= 200-47= 289-98= 66+25= 239+42= 6550= 652= 545= 65013= 740370= 7540= 14030= 96003200= 295= 200-104= 15+97= 582= 724= 1000-37= 6000150= 101+52= 47-19= 5405= 7406= 20190500=28300= 2512= 4350= 530-250= 600120= 185-86=906= 700-7= 120+390= 64+36-58= 403825= 2965= (18+25)4=7125+125= 1007+7= 90-69+27= 410-350-20= 25(100+2)= 95(100-1)= 7(40+7)= 645-(500-1)= 870-130-150=53-38-14= 196+116= 827-59-241=678-372-28= 17+15+18= 5000+4000-300= 310+260+420= 283+164= (120-302)4= (305+30)5= 42019+580+180= 75(18+14-27)=9006- 52040= 60-60(43)= 87(20+30-47)= 90+90(488)=655+39= 8.2+0.54+0.46= 6400200= 2508= 3.9+2.03= 250-160= 56040= 827125= 12700= 1-0.2= (180+20)5= 21000= 126030= 719+7= 2518= 14.5100= (150+50)8= 49035= 14.5100= 4284= 272-97= 1.29-0.18= 18054= 198+27=8+0.4= 2.5+3.2= 10340= (22+78)7= 1603=2.4-1.7= 2.4-1.8= 0.25+0.75= 86.2+15.8= 2133= (25+24) 4= 8-2.5= 175-35= 420-150= 9+0.1= 46+49+51= 174-48-52= 1.05-0.09= 8(125+50)= 420610= 0.6+7.45= 724+284= 2019= 20-19.7= 89100= 731=0.82+0.08= 0.6310=410= 171000= 0.56+0.4= 1.25100= 5.6+99=10025= 1-0.93= 52= 4(25+50)= 90-0.9= 5400600= 7.610= 7.06100= 345+298= 2.510= 65.8100= 91.051000= 30015= 0.051000= 1460= 0.81-0.19= 1-0.37= 0.5+0.4= 0.9-0.3= 0.35+0.43=2.8-1.2= 9.7-7= 7.8+2.2= 5.8-5= 6.7+3= 4060= 840 21= 2450= 1-0.08= 621-199= 7.8+2.2= 750-260= 360+640= 12-1.46-0.54= 5.6+2.3+0.7= 8800800= 110600= 256= 30270= 9015= 17575= 57亿+13亿= 61万-25万= 1144102= 320198= 40235= 91258= 430270= 376-198= 2.5+3.2= 9.94.8= 80.72= 0.25+0.75= 381938= 78030= 254= 4005=12200= 6025= 30015=90030= 847= 535= 64040= 96060= 4250= 0.6-0.47= 258= 1-0.06= 0.8+4.7=0.75100= 5.610010= 410= 0.08 +1.22=45万+256万= 7.41000= 4(257)= 171000=72060= 1-0.93= 7800= 760-450= 310+48= 240+160= 9060= 670-500= 76万+19万= 98-49= 410-203= 230万-70万= 82万-54万= 320+60= 860-47= 72030= 7979= 430+190= 51030= 340+270= 7218= 9015= 72019= 0578=38+90= 13050= 380-56= 580-410= 196+68= 18万+23万= 1000-620= 410-203= 0578= 38+90= 7979= 84万-48万= 64万+34万= 72019= 9616= 98-49= 340+270= 7218= 9015= 72019= 12524=72048= 630452= 299+435= 260-98= 25245= 3.7+2.5=12062= 96048= 431+199= 362-103= 36085= 2532= 72048= 5.5-3.2= 40+3020= 1.3-0.7= 2.4+0.6= 799+7= 4.3+1.5= 300-84-16= 2-1.1= 7.5-2.8= 4(36-25)= 906= 13101-13= 6455=这个工作可让学生分组负责收集整理,登在小黑板上,每周一换。要求学生抽空抄录并且阅读成诵。其目的在于扩大学生的知识面,引导学生关注社会,热爱生活,所以内容要尽量广泛一些,可以分为人生、价值、理想、学习、成长、责任、友谊、爱心、探索、环保等多方面。如此下去,除假期外,一年便可以积累40多则材料。如果学生的脑海里有了众多的鲜活生动的材料,写起文章来还用乱翻参考书吗?6505+80= 64+36+5= 6030= 87+56= 30035= 4