四年级小数加减法口算800题.docx

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1、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=第2天5.29+6.33=5.86-1.95=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.

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=7.57+6.82=5.18+2.34=8.74-6.93=第3天7.96+2.29=4.58+5.79=1.05+9.02=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+0.6

3、7=9.60+0.73=2.23+5.50=第4天9.81-0.09=2.80+6.46=7.74+1.48=4.22-2.66=8.28+7.36=7.48-6.52=4.64-3.25=5.62+2.82=6.63+7.16=5.94-0.36=8.80+7.97=7.87+9.72=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=第5天2.53+4.77=8.23-2.35=4.45+6.35=1.00+4.02=5.20-1.50=27.38+4.83=26.75

4、+2.83=3.64-2.58=6.52-3.44=15.31+13.51=5.5+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=第6天8.25+1.55=9.43-9.05=1.75+2.08=4.28-3.37=4.13+2.24=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=10.2-8.75=7.3

5、-2.25=3.8+3.54=3.05-2.9=3.1-2.07=12.7+6.58=第7天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=62.1-17.07=1.4-0.405=3.906+0.66=43.5-27.34=15.98-3.9=75.6-3.55=5.94+10.7=12.03+0.875=37.8+3.02=0.704-0.25=10.1-0.55=第8天27+8.03=26+7.98=13.99+1=7.88+2=28-3

6、.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=第9天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=第10天8.6

7、5－6.31= 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=第11天12.53+4.67=6.07+4.89=5.64-1.78=10.2-6.45=5-0.41=0.