0329四年级下册小数口算练习加减法brtWord文档下载推荐.doc

0329四年级下册小数口算练习加减法brtWord文档下载推荐.doc

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2.6＋l.4＝1.9＋0.81＝0.58＋0.42＝1.63—1.23＝

（3）3.44+3.36=7.74-5.85=9.35-4.74=

38.63-3.48=1.16+4.77=8.17-5.26=

2.6＋l.4＝1.9＋0.81＝0.58＋0.42＝1.63—1.23＝

（4）2.26-0.86=4.93+4.75=76.55+4.68=

31.1+4.5=31.9+3.4=3.45+4.6=

0.9－0.25＝9.9—0.01＝4—2.3＝3.2一1.7＝

（5）4.45+54.5=3+5.55=2.75+1.3=

39.4-2.75=67.3-1.26=61.9+6.2=

2.6＋l.4＝1.9＋0.81=0.58＋0.42＝1.63—1.23＝

（6）67.1-6.6=46.8-2.8=47.6-2.15=

10-0.41=45-0.45=3.57+3=2.6＋l.4＝

1.9＋0.81＝0.58＋0.42＝1.63—1.23＝

（7）27.38+4.83=26.75+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=

（8）5.48-3.25=4.8+18.9=10.3+58.7=

8.03-4.56=9.03-8.57=8.25+1.55=

1.75+2.08=4.28-3.37=4.13+2.24=9.43-9.05=

（9）4.17+2.53=5.07-0.98=5.67-0.73=

13.18+5.27=5.16+7.89=26.8+3.02=

3.7+2.36=15.4+2.97=10.2-8.75=6.07-4.993=

（10）7.3-2.25=3.8+3.54=3.05-2.9=

12.7+6.58=7.81-3.735=12.16+5.347=

0.4-0.125=18.7+3.96=9.6+4.78=3.1-2.07=

（11）5.67-0.845=0.506-0.19=11.04-7.3=

1.4-0.405=62.1-17.07=1.4-0.405=

43.5-27.34=15.98-3.9=75.6-3.55=3.906+0.66=

（12）5.94+10.7=12.03+0.875=37.8+3.02=

0.704-0.25=10.1-0.55=10+10.1=

27+8.03=26+7.98=13.99+1=7.88+2=

（13）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=

（14）27.38+4.83=26.75+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=

（15）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=4.13+2.24=

（16）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=

（17）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=

（18）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=

（19）5.94+10.7=12.03+0.875=37.8+3.02=

0.704-0.25=10.1-0.55=10+10.1=

27+8.03=26+7.98=13.99+1=7.88+2=

（20）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=

7.05－0.05＝0.78—0.38＝3.5十5.5＝5.5—3.9＝