小數(shù)加減乘除法練習題

1、練習一6=0.03=0.2=0.6=0.3=6=3=0.23=5.2=7=3242=13=0.7=0.01=5.3+6.7=5.4-3.6-1.4=300.01=151.5=12.9-8.5=1.4=8+2-8+2=286+198=314-202=526+301=223-99=107練習二0.9=0.5+7.6=24048=4200300=0.38=396+99=9030=2035=10.2=32.25=1.57+3.43=286+199=9.9=3699=2=480.6=963=0.2=6=0.03=0.2=0.6=0.3=24=0.24=2.4=2=480.6=963=0.2=練習三100

2、=10=100=0.2=0.8=30.9=0.4=0.4=8=500.04=800.3=9=5=2.2=0.6=0.5=0.01=0.4=123.9=0.66=0.3=2745673=0.3=120.3=134練習四40.3=1004540.5=108810=10-1.8-7.2=0.43+3.57=412=0.8=7.5x-3x=a+3a+7a=100=10.5=3=0.7=6=10=100=100=40.8=練習五0.7=3.3=12.5=9.04=8.8=0.28=0.73=0.6=0.05=0.43=26.7=29=3.6=3.1=810=10-1.8-7.2=0.43+3.57=41

3、2=0.8=7.5x-3x=a+3a+7a=100=10.5=3=0.7=6=1280.4=780.6=3.2=650.05=540.12=320.4=360.18=練習六0.3=5=4=、4=4=1.2=0.36=13=15=14=36=322=3.3=0.2=0.13=3.9=0.016=0.8=0.6=1.3=0.5=0.4=5=4.2=0.54=0.32=0.046=3.4=25=練習七70.8=8161.01=0.64=1612332=2.2=40.8=0.2=0.3=0.15=0.4=0.55=100=0.11=4.54=0.8=練習八420.003=780.06=450.005=

4、810.03=0.002=10001.25=102.5=1200.024=5=0.002=3.6=2=0.005=0.0006=2=21=0.0043=460.0023=0.0084=3.2=0.7=0.023=0.005=390.0003=133.0007=0.5=1230001.23=50=700=7600.008=6=4920.004=0.03=練習九99=0.98=0.1-0.047=2.9=0.2=19=63+124+76=10.8=7.09=101=10.1=101=10.1=72=719+7=3=0.23=5.2=7=3242=13=0.7=0.01=5.3+6.7=5.4-3.

5、6-1.4=300.01=151.5=12.9-8.5=1.4=8+2-8+2=286+198=314-202=練習十102576832=645-4512=10-2.87-7.13=9.9=40119+284=640+12845=81.25=0+4.63=4=9916.12=0.9=99+7.28=500.2=640.5=0.2=4.7=3.9=9.85-5.46=3.4+7.6=0.9=0.5+1.58=320.9=練習十一70+5050+70=13.7+0.98+0.02+4.3=0.53=7210172=235283528=78+787.4=7.26-(5.26-1.5)=8()0.25

6、)499+7.28=500.2=543618=10245-328=1001903618=5.25+14.5=300-426321=0.25+5.96=4031327=(25+4)4=1.2+1.8)4.5=練習十二526+301=223-99=10740.3=1004540.5=1081.4=0.32=123.8=(180+20)5=1.7+0.43+3.3=75254=2502505=練習十三0.5=0.125)8=100.1=9956.5=1.4=3.16+4.64=0.18=(15)=08257=99=18540=0.04)=39+0.25=(85.27)1.25=99=18540=0.

7、5=2.75=7.2=1.2+3.2+0.8=4=3.01+1.7+0.99=練習十四16=2.7=()=99+0.78=6.05)=7.4=8=5.2-3.5)1.25=(0.25+2.5+25)0.4=0.5=3.28-3.28=21()2.4=0.8=(9.37+9.37+9.37+9.37)2.5=3.7=460.33+540.33=1.93+2.7+2.07+7.3=2624=(2.2750.625)0.28=()+5.369=40=3725+26867=練習十五32+3604572=7590331454=4126073614(5.2-3.5)=0.034=6.25+3.85-2.1

8、25+3.875=3.375+5.75+2.25+6.625=2.1=6.54+2.4+3.46+0.6=8.2=0.25=5.7=800.9=(5.375-3.375)=13=練習十六12.37-3.25-6.75=1616+16=3.7=2.5+(2.3+5.3)=9.31-1.125-7.875=400(0.62+0.08)=2.4)4.8=10.03=(32-29.7)=1.5=2.5=0.1=0.9+3.65)2.5=練習十七0.9=101=(25.3-9.7)8.5=4.4)+18.25=(=102511253.6=0.9=8.1=227250.5=630=(21.88+29.8)7.6=5.4)85.7=0.32)0.16=45.3)28.4=1+10.1=練習十八2.4=2.2)4=0.02=5=4=0.4=2.3)=(63.2)=0.04)=0.86)0.8=0.7=(1.51)0.4=練習十九0.042=0.32=(6.02+2.8)0.4-2.05=0.9)0.25=1.7=7.5=55.7=2425=0.4)=2048=0.5)2=0.92=練習二十(25.3-9.7)7.6=61.5=0.02=(3.2-0.8)1.2=0.8=(53.73-17.49)(2.6+12.