专项练习口算巩固基础

1、姓名800-400=1800-900=4900-1800=420+80=430+1000=500-60=8900-800=6400-800=430+140=1600+3400=5300+900=1600+5400=720+170=2700+2700=1900+190=280+610=1800+2700=780+160=280+610=490+450=6400+2200=1800+5500=5700+1300=520+380=380+390=360+250=3400+4500=2900+5200=7500+1700=440+290=1500+3700=430+260=230+570=430+39

2、0=5200+800=1200+2900=400+2700=3200+3800=7300+2500=350+460=340+70=260+270=6300+2700=1900+2200=380+450=450+250=550+290=1700+5600=5300+2800=1400+2800=640+360=280+190=320+540=4300+800=1700+6500=2700+4100=1500+3600=440+290=350+290=5800+2400=二（）班姓名3900+1400=1400+3800=170+380=920-480=8500-2600=720+280=3500

3、+4300=660+180=3700+4500=380+520=6400+1800=4300-1700=710+90=3300-1800=3700-700=620-450=290+700=7400-4800=5700+1400=5100-400=2900+1300=3100-2500=6600+2400=4300+2800=260+380=7500-5600=410-260=520-460=2400+3700=130+670=1700+6300=9100-6200=8200-3300=8300-5900=5700-1900=3600+4500=7500+800=7200-2500=9000-7

4、00=2300+6700=930-760=4900+1600=8000-500=1800+900=6500-3800=3400+5900=8200-6500=430+270=6000-3500=4600+1900=710-540=2800+4200=630-260=3700+2600=960+740=1500+4500=9400-6800=620-180=8100-7600=630+290=二（）班姓名62+18=470-280=1500+3600=85-26=260-260=5600+2700=37+45=510-350=7200-5900=50-31 =250+480=6200-3500=

5、18+65=610-340=4800+1600=33+27=730-270=3700-1800=5119=450+390=2900+2900=42-37=260+390=4500-2700=66+24=130-80=3400+3600=74 46=750+250=5200-4300=34+27=430-270=3800+2400=81-72=180+450=2700-900=29+47=520-460=500+480=73-45=220+640=7500-2900=92-67=340+290=4400-3800=34+48=230-180=6500+1900=86-61 =450+350=32

6、00+2300=28+34=700-210=8100-600=75-56=190+320=4100-3800=85-26=470-280=1500+2700=二（）班姓名960-840=7800-900=6000-2700=5700-3900=620-560=4200-1500=6300-4500=5300-4700=520-290=4800-3200=5100-2800=8100-7200=360-180=6400-2800=9600-2500=740-690=910-740=920-560=6100-5700=520-250=840-640=450-310=8400-4900=5300-2

7、800=3200-1900=4500-1600=8100-6600=5400-1400=630-350=7100-6700=9100-7500=810-640=910-190=8400-600=320-80=7400-5700=720-150=9000-6500=6100-4200=630-380=430-340=8400-5000=5200-4700=330-180=9400-6800=3100-1900=7500-2700=570-290=4200-2600=8100-6500=4300-2500=520-370=6200-1600=4300-2500=7500-5700=4100-290

8、0=9200-700=430-260=560-170=8000-5700=二（）班姓名82-65=470+160=7600-4900=27+64=810-420=4300+2700=52-39=280+350=8500-5700=30+28=800-410=2300+4500=96-80=450+340=6200-2600=24+57=730-470=4900+5100=81-8=460+240=6400+2900=49+7=700-430=5600-3800=43-28=600+250=2400+5300=17+43=810-760=7100-4300=36-29=620+280=6700+

9、2600=42+30=530-350=9200-8000=80-74=490+260=3600+2500=36+48=720-640=4500-2700=42 7=360+440=1900+3400=28+23=840-570=7800-6900=51+15=570+260=5200+2800=4618=930-390=6600 3900=70-49=170+430=5300+1700=34+27=650-390=9400-5800=二（）班姓名800-640=5400+1800=7200-600=4100+2900=6200-4600=800+3900=6700-2400=590+220=1

10、400+3900=1900+6200=7100-3700=5600-2700=4600-2700=260+500=4300+1800=670+90=8300-600=8000-4100=5400-4000=400+5600=3400+4600=3600+3600=4700-2900=3700-2000=9500-5800=1500+3800=4200+1900=7400-3700=5400-1500=610-80=3500+2800=2800+4300=7500 3600=7100-5200=750-560=540+460=3900+2700=4900+2700=840-480=6500-3800=5300-1800=7300+1900=3600+4500=35