四年級小數(shù)加減法口算練習(xí)題

1、2.7+3.9=8.65-6.31=8.7+0.03=10.2-6.45=8.5+2.5=2.4-1.4=0.68+0.42=7.82-7.2=2+9.1=0.48+0.52=8.1-5.1=0.78-0.24=0.8+0.18=0.89-0.25=1-0.98=0.9+0.1=1-0.8=4.54=5.6+4=10-4.4=6+6.6=9.5-2.7=1-0.55=3.7+4.8=7+3.3=3.25+0.75=1-0.9=2.3+0.6=0.9+0.8=1-0.3=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

2、=4.5-3=7.8-1.1=1.5-0.5=1-0.9=2.3+0.6=0.9+0.8=1.9-0.9=3.5-2.4=0.36+0.64=0.96-0.3=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=-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=0.3+1.5=2.5+9.8=7.6+1.3=4.

3、4+5.7=2.3+7.7=+3.1=+2.31=9.16+2.64=5.68+12.22=16.8+16.5=26.3+14.6=6.9+3.4=52.3+64.7=12.75-5.3=8.24+16.93=0.75+0.4=20+0.78=4.8+4.2=5.7-3=4.9-1.7=1.34+0.8=2-0.75=0.7+0.9=7.8+6.9=6.55+4.68=14.6-0.34=14+0.78=0.33+9.8=2.26-0.86=5.2-0.9=0.9+1=14.6-0.4=10-0.1=14+0.78=3+2.7=5-0.08=1.64+2.35=1.11=8.34-6.22=1

4、.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=0.2+2.7=5.6+4.4=9.4+0.06=0.7+0.4=0.5-0.45=10-0.1=1.8-0.9=12.6-1.2=17+0.33=1.01+0.6=7-0.05=9-0.26=6.14+3.83=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=4.9

5、3+4.75=8.17-5.26=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=44.4+1.4=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=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、6+8.46=0.99+1.1=1.23+6.52=5.32-0.93=6.35-5.23=1.23+5.69=1.26+5.21=0.96-0.23=7.26-4.93=2.16-0.23=4.63+8.9=9.28+7.32=2.65+9.32=5-0.08=21.85+37.08=42.39-20.92=0.78+2.2=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=14+0.78=14.6-0

7、.34=1.3+8.56=0.8-0.55=10-0.1=4-0.04=1-0.03=30.5+3.05=0.8-0.45=3.25+0.75=8.65-6.31=10-7.64=13.6+8.46=0.99+1.1=3.17+3.43=6.82+15.55=34.52-17.87=12.23+4.57=23.75+8.64=17.83+9.5=7.83-0.5=3.45+8.7=16.55+1.3=8.54+5.96=27.38-5.34=2.62+4.66=8.5+9.63=4.76-1.12=1.45+2.7=4.31+21.76=9.46+18.28=3.2+1.8=0.9+0.6=0.1-0.01=1.2-0.12=10.385=