四年级小数加减法口算练习题.docx

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1、1.5-0.5=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=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=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

2、.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=5.7+3.1=7.69+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=

3、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=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=4.5－4=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=2.7＋3.9=0．7＋0．9=0.9＋1=14．6－0．4=10－0．1=14＋0．78=3＋2.7=5－0．08=1．64＋2．

4、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=10－0.1=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=3.4

5、4+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=14.6-0.34=1.1+4.5=1.3+8.56=1.9+3.4=0.8-0.55=3.45+4.6=1-0.03=4.45+4.5=30.5+3.05=9.4-2.75=0.8-0.45=7.3-1.26=3.25＋0.75=3.83+5.55=0.78+2.2=2.75+1.3=5-0.08=7.6-2.15=10-0.1=1.9+6.2=10－7.64=7.1-6.6=13.6＋8.46

6、=6.8-2.8=0.99＋1.1=44.4+1.4=1.23+6.52=1.7+9.66=5.32-0.93=43.3+6.3=6.35-5.23=55.5-1.9=1.23+5.69=38.9-5.55=1.26+5.21=64.41+8.67=0.96-0.23=0.7＋0.9=7.26-4.93=3.8＋0.6=2.16-0.23=8.24+3.76=4.63+8.9=4.1－3.8=9.28+7.32=14＋0.78=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+

7、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=14.6－0.34=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=0.78＋2.2=5－0.08=21.85+37.08=3.25＋0.75=3.2+1.8=8.65－6.31=0.9+0.6=10－7.64=0.1－0.01=13.6＋8.46=1.2－0.12=0.99＋1.1=1－0.385=3.17+3.43=3