四年级数学口算练习题500道.doc

.四年级口算练习（一）500题1388954005420034550450180006002700304514=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 213 156 12060 254 145 48080 3060 180060 2540 180090 517 483 906 14005 128 922 1504 56080 7224 32002 2420 7014 283 613 6505 9006 1047 9113 45050 1220 182 843 19005 7204 5070 48080 2630 9331 184 7437 21030 3620 4250 12020 1602 4802 5060 484 7619 183 6800 1108 25050 1305 4008 4203 9015 324 9246 4816 1140 36060 7619 183 6800 1108 25050 1305 4008 4203 32002 2420 7014 283 613 6505 9006 1047 9113 45050 1220 182 843 19005 7204 5070 48080 2630 9331 184 7437 21030 3620 4250 12020 1602 4802 5060 484 7619 183 6800 1108 25050 1305 4008 4203 9015 324 9246 4816 1140 36060 1602 4802 5060 484 7619 183 6800 1108 25050 1305 4008 4203 9015 324 9246 8.19 2.54 60.025 3.66.3 0.054 3.50 03.5 0.90.3 10.06 90.5 1.258 2.63 4.120.350.27.50.1 0.90.3 10.0690.5 1.258 0.20.48.21.8 10035.222.50.42.45 0.2240.90.523.991 03.522.55 8.47 0.3417 2.50.58.40.7 0.340.17 30.44 1.26 0.720.6 2.61.3 0.60.3 03.65 7.821 0.0010.1 1.40.7 3.60.06