数学四年级下册《小数加减法》口算800题

1、4.13+2.24=7.57+6.82=5.18+2.34=8.74-6.93=7.96+2.29=4.58+5.79=1.05+9.02=第2天4.30-4.19=4.94-2.06=7.93-4.75=6.03-2.94=4.62+3.02=9.32+3.40=5.43+3.23=3.55+5.33=8.21-4.90=2.38+2.40=9.28+1.69=6.89-0.88=4.97+7.29=3.34+4.51=6.29+0.67=9.60+0.73=2.23+5.50=9.81-0.09=2.80+6.46=7.74+1.48=4.22-2.66=8.28+7.36=7.48-6.

2、52=4.64-3.25=5.62+2.82=6.63+7.16=5.94-0.36=8.80+7.97=7.87+9.72=第1天8.78-0.52=1. 27+0.31= 8.42-7.04= 16.76+6.61= 0.41+0.95= 4.15+7.08= 2.59+9.10= 3.51+9.00= 4.54+2.55= 8.70+1.16= 1.31+5.61= 7.21-0.77=8.64- 7.85= 8.68+0.84= 2.62+3.19= 5.93-1.20= 3.66+5.90= 6.14-2.01= 5.58+0.13= 5.15-4.79= 5.29+6.33= 5.

3、86-1.95= 3.79-3.47= 8.89-0.20= 7.42+9.92= 3.58-2.87= 7.31-2.51=8.81- 5.75=6.67- 2.72= 3.04+5.71= 1.73+4.32= 4.47+9.24= 8.53+3.94= 8.36-3.72= 6.78-1.84= 6.35-2.83= 4.36+7.50=8.76+0.75=7.37-4.92=7.52-1.82=3.42+6.99=4.06+4.85=7.55+7.05=9.40-8.83=7.41-2.14=2.53+4.77=8.23-2.35=4.45+6.35=1.00+4.02=5.20-1.

4、50=27.38+4.83=第3天26.75+2.83=3.64- 2.58=6.52-3.44=15.31+13.515.5+4.5=3.27-2.49=11. 65-7.39=19.01-7.99=7.51+0.49=5.48-3.25=4.8+18.9=10.3+58.7=8.03-4.56=9.03-8.57=8.25+1.55=9.43-9.05=1.75+2.08=4.28-3.37=4.17+2.53=5.07-0.98=5.67- 0.73=13.18+5.27=5.16+7.89=26.8+3.02=6.07-4.993=3.7+2.36=15.4+2.97=10.2- 8.

5、75=7.3- 2.25=3.8+3.54=3.05-2.9=3.1- 2.07=12.7+6.58=7.81- 3.735=12.16+5.347=0.4-0.125=18.7+3.96=9.6+4.78=5.67- 0.845=0.506-0.19=11.04-7.3=1.4- 0.405=第4天62.1- 17.07=1.4- 0.405=3.906+0.66=43.5- 27.34=15.98-3.9=75.6- 3.55=1-0.3=5.94+10.7= 12.03+0.875=37.8+3.02= 0.704-0.25=10.1- 0.55=27+8.03=26+7.98=13.9

6、9+1= 7.88+2= 28-3.56= 10-0.81= 10-0.36= 20-0.92=8- 7.089= 95-9.85= 20-9.42= 35.09-11= 96.85-85= 45.45-45= 10-0.41= 45-0.45= 3.57+3=1.5- 0.5= 1-0.9=2.3 0.6= 0.9 0.8=3.4- 1.5=1.9- 0.9=3.5- 2.4=0.36+0.64=3.5+ 4.2=6 -0.5=2.7- 0.4=0.8+ 0.7=4.5- 3=7.8- 1.1=第5天1.5- 0.5=1-0.9=2.3 0.6=0.9 0.8=1.9- 0.9=3.5 -2

7、.4=0.36 0.64=0.96-0.3=8.65- 6.31=2.5+0.9=1.2- 0.5=7.8+1.6=0.39+0.15=3-1.4=4.7-2.8=7.2- 6.45=15-0.48=6.77-1.78=3.45+5.75=3.40+58.20=49.80+49.20=111.6- 99=7.8+21.02=5.6- 1.42=12.5+0.9=4.5- 2.83=3.75+2.25=2.98+0.56=12.53+4.67=6.07+4.89=5.64-1.78=10.2- 6.45=5-0.41=0.3+1.5=2.5+9.8=7.6+1.3=4.4+5.7=2.3+7.7

8、=5.7+3.1=7.69+2.31=9.16+2.64=5.68+12.22=16.8+16.5= 第6天 26.3+14.6= 6.9+3.4=52.3+64.7= 12.75-5.3= 8.24+16.93=0.75 0.4= 200.78= 4.8 4.2=5.7- 3=4.9- 1.7= 1.34 0.8= 2-0.75= 8.7 0.03= 0.2-0.09=8.5 2.5= 2.4-1.4= 0.68 0.42=7.82- 7.2= 29.1=0.48 0.52=8.1- 5.1= 0.78-0.24= 0.8 0.18= 0.89-0.25=44.4+1.4=6.14+3.83

9、=7.93-1.64=5.23-2.36=3.44+3.36=8.63-3.48=1.16+4.77=7.74-5.85=9.35-4.74=4.93+4.75=8.17-5.26=2.26-0.86=6.55+4.68= 第8天 1.1+4.5= 1.9+3.4= 3.45+4.6= 4.45+4.5= 9.4-2.75= 7.3-1.26=3.83+5.55=2.75+1.3= 7.6-2.15= 1.9+6.2= 7.1-6.6= 6.8-2.8=1-0.98=0.9 0.1=1-0.8=4.5- 4=5.6 4=10-4.4=66.6=9.5- 2.7=1-0.55=3.7 4.8=7

10、3.3=3.25 0.75=2.7 3.9=0.7 0.9=0.9 1=14.6- 0.4=10-0.1=140.78=32.7= 第7天 5-0.08=1.64 2.35=1.1- 1=8.34-6.22=1.3 4.3=7.2 6.9=9.3-8.8=4.4 15.99=19.8- 5.6=96.3- 56.2= 79.2 56.8=1.9 25.793=88-69.21=136.5- 105= 73.4+52.1=93.1- 20.9=63.1- 11= 0.33+9.8= 7.8+6.9= 0.2+2.7= 5.6+4.4= 9.4+0.06=0.7+0.4= 0.5-0.45= 10

11、-0.1=1.8- 0.9=12.6- 1.2= 17+0.33= 1.01+0.6= 7-0.05=9- 0.26=1.7+9.66=43.3+6.3=55.5- 1.9=38.9- 5.55=64.41+8.67=0.7 0.9=3.8 0.6=8.24+3.76=4.1- 3.8=140.78=14.6- 0.34=1.3+8.56=0.8-0.55=1-0.03=30.5+3.05=0.8-0.45=3.25 0.75=0.78+2.2=5-0.08=10- 0.1=10-7.64=13.6 8.46=0.99 1.1=1.23+6.52=5.32-0.93=6.35-5.23=1.2

12、3+5.69=1.26+5.21=0.96-0.23=7.26-4.93=第9天2.16-0.23=4.63+8.9=9.28+7.32=5.2-0.9=2.65+9.32=7.65-6.23=8.28+4.75=9.23+5.45=6.23-4.53=8.52+4.65=5.2+2.63=4.62+8.95=7.24+6.21=3.8-2.3=0.7 0.9=0.8 0.6=8.24 3.76=4.1-3.8=140.78=14.6-0.34=1.3 8.56=0.8-0.55=10-0.1=42.09-32.46=5.15+9.71=4-0.04=64.39+40.78=8.37+8.19

13、=1-0.03=18.08+34.00=3.61-1.64=30.5 3.05=47.63-31.59=2.91-1.78=0.8-0.45=17.42-10.44=7.84-1.52=0.78 2.2=16.24-14.18=6.86+3.33=5-0.08=55.89-28.75=2.15+9.08=3.25 0.75=67.23-19.17=4.3-3.02=8.65-6.31=22.04+80.13=2.12+6.52=10-7.64=13.6 8.46=1.2-0.12=6.52-6.41=0.99 1.1=1-0.385=8.51-3.54=3.17+3.43=3.2-2.3=7.

14、34-1.67=6.82+15.55=0.76-0.38=9.66-1.72=34.85-11.73=15-7.3=4.94+2.59=75.80+59.35=2.1+0.2=第 11 天50.10-48.60=0.3+0.7=1.95+8.08=91.91-75.10=3.6+1.6=1.84-1.84=53.73-31.75=7.5-0.5=2.74+8.8=64.48-14.42=2.13-0.02=3.14-2.41=39.03-14.98=3.51+0.2=2.13+4.01=第 10 天102+0.3=9.41+5.76=28.36-24.00=1.12-1.02=8.66-2.8

15、3=61.83+69.95=4.5-0.01=6.94-6.53=65.36-38.06=1.9-0.4=3.5-2.76=29.37-18.02=3.14-2.33=9.86-8.23=7.79-5.83=12.95+83.64=97.41+3.31=6.88+5.67=4.3+4.1=84.76-16.52=96.82-54.49=6.02+7.35=4.17+9.86=24.42-23.35=14.9-10.19=第 13 天3.78-2.13=11.12-10.15=36.56-15.66=4.69+1.4=5.28-4.32=94.64-13.78=75.51-47.05=5.14+

16、5.48=9.43+3.41=97.07+9.25=83.36-77.9=2.32+9.24=6.95+3.18=76.87-33.61=27.9+59.04=4.41+7.73=9.04-3.61=88.82-28.33=77.51-39.11=1.76-1.02=1.86+4.36=第 12 天41.69+25.99=9.78+6.01=3.91+9.77=79.65-44.07=16.04+50.21=4.05-1.4=8.19-2.65=58.82-54.89=7.03-5.09=6.85+5.52=8.31+5.23=64.43+10.14=4.44-1.83=3.17+8.75=7

17、.34+4.27=54.98-47.09=1.56+9.02=8.64-7.78=4.85-2.05=35.63+26.27=9.3-6.4=6.99+5.11=1.57-1.23=48.33+12.01=8.06+2.5=1.62+3.44=2.8+1.5=99.13+9.5=5.02-1.33=4.88-1.76=6.63+5.23=51.51-36.56=3.93-1.7=7.67+1.56=66.54-15.7=85.85-72.41=6.01-2.49=2.86-2.5=21.97+56.16=94.23+7.53=8.54-5.73=4.99-3.11=61.14+33.59=87

18、.93+10.39=6.71+7.47=2+9.32=93.24-67.69=62.78+14.35=5.34+9.63=2.82+2.84=45.37-19.21=79.45-37=9.13-4.82=2.54+8.14=23.33-15.75=63.25+35.62=7.23-1.27=8.09+3.52=38.59-36.15=19.5-19.14=6.76-6.29=4.23+2.15=86.32-34.9=24.09+61.51=3.48-1.11=4.37-2.95=5.56-2.42=79.38+11.15=1.51+4.59=6.87+5.21=9.65-4.05=55.31-

19、22.88=3.61-3.19=7.34+2.82=9.88-7.81=76.66-52.53=7.38-4.02=4.05+4.26=66.29+27.15=61.16-55.76=3.83-2.44=7.41-1.74=68.55+21.42=70.59+11.67=3.62+5.2=2.49+7.68=47.87+46.9=24.85+55.96=9.83-4.3=7.39-4.54=69.41+25.29=10.56+56=5.05-3.75=9.66-9.43=25.45-16.34=71.68+19.85=4.86+6.41=3.54+9.56=30.31-30.25=57.48+

20、22.99=5.75-2.52=3.37-2.14=21.9+62.18=72.31+22.74=8.7-2.27=4.74-4.51=98.52-58.64=96.66+7.15=2.24+4.16=9-8.31=89.39-57.57=88.25+11.38=9.76-7.75=3.19-1.62=26-20.56=85.37+11.56=7.19+7.13=1.15-1.08=54-44.22=53.02-11.37=1.39+9.9=6.22-2=51.1+24.48=43.34+20.21=7.61-6.4=6.22-2.26=10.23-10.11=21.72-14.89=第 15

21、 天3.3+8.05=38.16+34.93=77.48-74.53=4.3+7.54=7.79-4.95=51.75+10.02=38.3-20.16=1.26+6.82=3.76+9.9=56.29+40.09=12.5+74.88=2.06-1.14=9.84+9.59=94.6+6.33=15.91-10.08=6.52-1.66=2.11-2.11=84.72-53.34=82.65+12.55=6.78-3.09=4.19-2.63=第 14 天3.99+5.87=3.32-1.41=5.14+6.27=42.44+49.35=3.1+1.5=8.27+7.55=4.75+2.72

22、=17.3+25.13=5.99-1.68=1.28+1.04=4.7-2.56=77.22+18.19=4.86+2.93=5.34+3.49=1.31+5.23=5.2+1.98=4.72+8.33=3.53-3.18=2.34-1.61=7.33-2.02=3.98-1.02=7.94-3.38=5.38+8.77=3.73-2.44=8.51-4.95=5.46+5.62=3.32-3.1=5.22+3.36=4.36-3.76=第 17 天4.87+5.33=4.1+3.53=9.69-2.97=9.91-2.46=4.26-3.69=8.87+2.18=2.47-1.13=9.84

23、+5.19=3.06-1.12=2.28-1.87=7.44+5.77=9.6-7.31=8.47-3.04=1.33+3.93=7.13+5.1=6.68-5.33=1.51-1.05=3.13-1.82=4.66+4.59=4.2+8.62=4.87-2.58=第 16 天4.87-2.54=2.88-2.37=3.55+6.19=6.22+8.24=1.05-1.02=8.38-7.21=9-6.67=6.06-2.54=1.88-1.31=5.79-3.19=3.71+4.82=6.73+5.92=2.12+3.92=4.47+5.7=3.16-2.03=3.11-1.79=6.85+

24、7.38=9.3-3.02=3.92-1.67=5.05+1.06=8.02-4.16=8.29-4.87=2.78+1.07=7.35-3.67=1.24+1.51=4.92+8.68=8.11-5.53=8.85+5.61=3.5+9.89=8.46+7.07=8.83+9.99=1.09-1.07=4.5+1.06=9.02+5.96=3.03+5.3=4.41+7.09=1.11-1.09=7.51+2.51=7.35+7.53=1.4-1.37=6.02-5.73=1.24-1.19=3.22-2.26=3.23+6.28=7.2+7.48=4.16+3.3=56.8-31.52=5.03+7.86=7.47-5.57=7.22-5.32=93.85+7.24=8.9+9.85=3.14-1.13=9.88-4.4=第 18 天9.36-7.74=3.29+3.12=6.87+2.01=71.21-11.55=9.88+4.22=8.76+9.72=2.95+4.47=88.47-14.37=61.2+11.02=10.41-10.37=66.3+25.6=13.02-10.8=25.98+13.56=81.61-57.39=50.08-17.81=95.15-12.81=79.72+19.82=42+29=67.9+25.97=58+21.08=88.33-60.72