人教版四年级下册数学专项练习：口算题

1、45+156=25058=6524=303+8=75-115=.42+7-29=560080=2516=5614 = 240040= 710-420=6513 = 360060= 5090=7515 = 873= 2285=12024 = 2516= 125=4004+20=10+123=0(8020+80)4=70+(100-105)=36040=4020=80-25=70+45=902=166=3006=5409=3020=4004=350-80=160+70=18-648=426+20=40-57=80+603=41+182=12025=3611=102525=336+70=2594=2

2、00-333=3020-1010=1250=258=2311=12525=4200-2200=220+80=2085=600-3200= 20+202=35 -255=36 +8-40=280040=9814 =9624 =20025 =80016 =84021 =56014 =39013 =60015 =3230=2230=6201=175=460=4500900=170+90=480040=14201=8016=420020=250050=165=3220=674=489=6963=1256=4825=78020=72-45=362-85=720452=3000+200=48125=358

3、=80-24=420352=2532=4515=782=4512=685=6923=67+25=21070=630030=690 420=102+284=480+290=93030=233=80030=210070=61212=360+140=180030=88020=4514=390=32+15=287=4060=3220=468+197=680=8020 =1470010= 3518= 57+19= 725-76-24= 1343= 729+302= 7519+75= 6060= 12524= 1258= 4518= 4123= 7060= 36024= 254= 240020= 4522

4、= 91-28= 1036-155-245= 30052=2564=2528=156=12548=12516=15+22=10234=450045=2540=490352=360452=3518=264+198=2800254=4522=521-305=3500252=25+340=560016=67+28=24040=456=375+99=700070=45+45=624 198=960030=63090=72094=3202=5050=3365=1240=2620=62+18=560352=254=254+99=4512=750-570=507=692.3=58+79+42=8056=90

5、-25=3535+6535=12580=44-15=180090=12516=97+18=1024=4514=26+14=8127=123+259+741+477=9546+465=10234=749+5036+251=9999+99=614 402=450=202=86599+865=679+67=655+777+345=25947=1814-378-422=398+558+442=180052=2265=870-232-168=6.4016=7200452=7365-3999=180036=3514=3027830=2648=5.769=38750=1.8540100=9374=2854=

6、542=1.359=158=1254=8.4561000=218=320.1=5728=3720=17.310=1.580=36.520070=3844=88.87459.237=3843.2=739=18.4610=46.839=14.60.2=502=2103=784=24.514=49.53=1530=4625=3.7410=30.5 0.742.135.241.1890.8 1.520.250.70.82.50.42.30.30.052 1.70.51. 250.82. 790.123 3.6120.684 6.51310.55 0.3520.5614 0.40.70.640.8 0.

7、2336.30.70.24 0.3610.773.50.50.480.6 0.777 0.544 0.2540.1258 0.541.153. 52 4. 22.17.20.810.1250.4810.630.24+0.12+0.64 1-0.28-0.52=0.50.21740 100 633.2 1.682.80.414 7.41.920.04 0.325000.65 4.3510 5.4420 3.52001.5 0.060.7515 0.40.840.25 0.36 1.541.019942035 2512 1350.5 0.5117 32.8 19 5.21.31.60.44.90.

8、715612 0.87 0.490.020.1=5.06x-4.07x=a+0.4a=120.3=4.6x+2.7x=1.7+0.43=0.58a-0.47a=1.50.4=4.8x3.1x=1.250.2=12a8.4a=64.3216=6x4.9x=2. 343. 2505.1b+11.9b=1.233=1000.01=3.40.07=3x+4x=0.420.1=4.3b2.7b=70.25=5.1x+2.9x=0.30.4=5.4+1.4=2.7x+3.6x=161.6=10x-3.7x=0.98+1.82=2.5x+4.3x=0.050.8=6.05x-4.96x=3.21.6=3.1

9、20.5=100.75=5.60.1=xx=0.90.01=72.80.8=2. 7b+5b=3. 53=7.6b4.3b=4=2. 5=3. 5t-t=510.2=38a3a=7b+b=4c-2c=0.12+3.4=101.23=2-0.8=10.7-5.7=0.52+0.08=25=80.030.01100=300.01=01.22=0.65=1.250.25 09.8 1.9+0.39 4.8 5.20.50.4=40.25=3 4=8.19=2.5460.025 3.6+6.3=1.2-0.9=0.540.6=0.260.3=10.05=200.4=2.8+10.2=7-0.9=0.5

10、5+0.3=0.8+0.2=160.4=0.145=2.54=15.3-10=3.3+7=610=0.054=3.5003.5=0.90.3=10.06 90.5=1. 258=2. 63 4.12=0.350.2=7.50.10.90.3=0.86+2.14=0.37+4=3.20.8=0.45+0.55=6.48=3.7 1.4=7.8 7.2=2.19 9.1=10 0.89=0.6 0.42=8.1 5.1=0.72-0.24=5400=9.9+11.1=1871000=10.06=90.5 1.258=0.20.4=100-35.222.50.42.450.2240.9 0.523.

11、99103.52 1+3.89=0.08110=7510=0.960.8=4.50.90.871.571.3280.7810.3250.6 0.90.33.50.22.010100.052.558.47=0.3417=2.50.5=8.40.70.340.17=30.44=1.260.720.6 2.61.3=0.60.30.137.211000.740.05440.3 12.580.450 300.55 2.634.127.50.13.50.01=3. 7+5.9=4. 5-2.9=7.1-2.2=03.65=7.821 =0.0010.11.40.73.60.065.60.95.61.40

12、.480.8 4.40.114.23 3.20.440.30.0140.5 5.10.170.281.4 0.90.459.61610.01 0.011 7.51.50.819 30.5 10254.80.1603.893.521 37.299+37.2=6.441.50.3=10.410.4=1.857.20.92540.254=2.268.40.4951.952.54253.302.54 0.30.137.29937.24.52=7.8+0.22=20.640.36 3.40.4=12.6 0.9=21.640.36 1.20.04=0.427=1.253.30 0.9 2.01=2.97

13、100=203.77.3= 6.3+7=2.19 9.1=50.751.50.75=0. 650.2=9.8-0.98=1-0.10.1=0.7+3=1.20.8=0.97+10.7=6.30.021=1.50.03=6.8-2.43=50.7=0.435=3.60.9-4=3.6-0.36=8.1-2.2=0.60.3+0.5=6.8 8.6=9.40.2=1.80.90.5=21.08=8.80.4=(1.6+0.5)5=430.01=3.720.2=0.78-0.6=990.13.2-2=60.1258=1.948.80.11=41.20.25=0.12581. 840=2. 5-3.6

14、1.8=2.30.185.1=12-0.054=4.232.013=16-4.5-5.5=1.80.33.724=13-0.5-4=1. 10.7=2. 32-0.4=1.9+5.151=3.250=3.20.5=10.010.1=1.250.5=1.293=7.2-1.2+6.7=7.5+2.5=10.1-2.4=10+0.01=4.9-1.9=6.3+2.4=5.8+7.6=0.2-0.03=10.71+4=3. 7+5.9=4. 5-2.9=7.1-2.2=10-2.41=2.4-0.8=3-1.04=6.13-2.15=6.55=3.6-1.9=2.3+1.06=16.8-15.9=1

15、.70.03=5.3-2.8=0.224=6.03+4.12=4.2-1.3=245=1.67=7.42=4.9-4=8.13=0.499=0.052=1.46=0.726=3.62=57.71.1=72.3=8.88=0.50.25=600.03=0.1280=6.39=20+7.04=9.90.9=1.83=0.2-0.01=40.08=9.60.8=7. 62=8. 30=7.2 0.8=36=15.30=6.33=4.20.7=0.920.4=0.9510=1.40.2=0.5117=0.193=0.5719=2.55=0.7236=00.752=0.81-0.63=0.040.5=0

16、.2910=0.0192=3.69=2.38100=1.253.2=0.245=8.13=1.258=50.69=2 0.48=3 0.7=90.04=180.5=600.5=75=54=132=20.04=0.520=0.2540=40.4=5.40.01=5.40.1=14=0.123=0.760.38=145=4.515=18=34=121.1=0.155=9.87=7.20.2=1.560=101.25=50.07=50.9=9-8.57=2.814=1-0.90.9=7.8 0.0210.0010.30.5=0.30.5=6.5210.1250.125100 10.634.9+1.53=7.9-1.30.3=8-0.80.8=2.3-0.69-0.31=0.16.40.1=40.25 500 681.63.23.8 6.0313550.8125430.01104 799.81.41.50.0440