四年级数学口算练习题500道8.doc

四年级数学口算练习题500道81388954005420034550450180006002700304514=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=4(25+50)=32.819=10000.8=3.060.2=31052=0.5117=24030=8125=0.671.24=76.28=8.20.01=9923=504=51000=0.429.5=100.5=65254=0.08100=1.820.63=4.51.5=10.63=23199=3.72.5=32+268=1.30.7 =2.40.6 =7997 =12062=910070=1-0.2=145-99=1025=.560=3.12+5.2=11.3-8.6=0.23400=0.59+0.22600.5=20.29=457+198=756197=45+15-45+15=5.4-2.5-1.4=0.361.2=53.30.2=5.53=14.5-9.5=400258=4168=2.130=1.2538=0.90.26=821202=0.2550=30.25=12516=7（100.5）=0.180.9）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）=13.6810.48=0.740.001=5.4-2.5-1.4=2-0.35-0.65=6.4+1.07-0.47=1.50.04=42035=0.49+0.61=2.40.2=0.640.16=5580=11.7+2.3=735-298=81027=10-8.25=3200400=360120=1.29-0.18=15（100+3）=0.6+5.47=36+54=7000200=398+294=500-12=5040=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=3200200=420030=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=20000500=28300=2512=4350530-250=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=42018+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=2008=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=750260=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=320168= 40235=91258=430270=376-198= 2.5+3.2=9.94.8=80.72=0.25+0.75=381938=78030=254400512200=6025=30015=90030=847=535=64040=96060=4250=0.60.47=258=10.06=0.84.7=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=430190=51030=340+270=7218=9015=72012=0578=38+90=13050=38056=580410=19668=18万23万=1000620=410-203=0578= 38+90=7979=84万48万=64万34万=72008=9616=98-49=340+270=7218=9015=72012=12524=72048=630452=299+435=260-98=25245=3.72.5= 12062=96048=431+199=362-103=36085=2532=72048=2.4.60.6=7997=4.31.5=300841616=21.1=7.52.8=4（3625）=906=6455=650580=6436= 6030= 8756=30035=420（420300）=24192419=(5921)(726)=125+125+125+125+125+125+125+125=四年级口算练习题500道20030 424 637 23020 1303 6050 1503 2602 7526 2140 3520 1580 3006 158 2330 513 6060 805 24080 10050 120020 25050 27090 5010 36040 50050 28070 342 155 49070 213 1