四年级口算练习（一）500题13889 540054 20034 55045018000600 2700304514=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= 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= 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=