小数加减乘除计算练习共套

1、练习（一）4.8 +6=0.960.03=2.4+ 0.2=4.8 +0.6=9.60.3=25.86=22.8+3=5.980.23=19.76+ 5.2=3.81 +7=3242=246.413=2.17+0.7=0.4+ 0.01 =5.3+6.7=5.4-3.6-1.4=30X0.01 =151.5=12.9-8.5=7.2X0.4=2.8X 1.4=8+2-8+2=286+198=314-202=526+301=223-99=0.45X2.5 二0.8 X1.25 =0.3X3.6 =0.3X0.3 =10X0.07 =0.3X1.4 =0.05X7 =-1 - / 22练习（二）-

2、3 - / 222.14-0.9=0.5+7.6=2404200+ 300=0.75-0.38=396+99=90X30=20X35=13-2.25=1.57+3.43=286+199=18.54-9.9=36X99=2.448 + 0.6=96+ 3=0.244.8 +6=0.96+ 0.03=2.44.8 +0.6=9.6+ 0.3=3.243.24 0.24=3.242.4=2.448 0.6=963=0.24+ 48=0.2=+ 2=+ 0.2=+ 0.2=+ 24=2=0.2=练习（三）3.215 X 100=0.8X 10=4.08X 100=1.1 X0.2 =0.6X0.8 =

3、3X0.9=2.5 X0.4=3.6X0.4=12.5x 8=50X0.04=80X0.3 =1.1x 9=0.16 X5=1.78+ 2.2 =9.6+ 0.6 =1.2 0.5=0.7+ 0.01 =2.5X0.4=12-3.9=6.6+ 0.66=3.9+ 2.03 =4.2 +3.5 =1.6+2.4X0.3=2.14-0.9 =27 + 456 + 73=0.3x 0.3=7.2+ 2.8 =0.9 +0.01 =12+ 0.3=2.87+ 0.7 =13 + 4 =0.96+ 0.3 =1.5X 0.4 =-4 - / 22ZZ/-V-=80-p00 V X8Z£=001

4、，X 99 00 V xf9l/0=9 +吟=£-960=90-V=001，X SOI=ez+e£+e=x£-xgz=80 X 60二乙L xpx92=Z9£+£t70二乙 Z81-0L=(H +8=8 xSNL=S9CX0=L x66£=290-60=9 0 X 9S £=P X220=9xVZ=POX 97=P X£2=SS-9£-00L= 81+ 38=f0 xSO=£0x41=I/O X 20 0=P Xno=920 XSO=P 0 X 26 0练习（六）2.5 +0.7=10.1+ 3

5、.3=10.75+ 12.5=3.25 X 9.04=12.5X8.8=0.43X0.28=6.45 X 0.73=4.6X0.6=8.9X 0.05=3.08 X 0.43=1.5X 26.7=5.22+ 29=18.72+3.6=13.95+ 3.1 =8+ 10=10-1.8-7.2=0.43+3.57=2.5X4X 12=0.9 X0.8=7.5x-3x=a+3a+7a=1.05100=1+ 0.5=0.96+ 3=1.47+0.7=5.4+ 6=128+ 0.4=78 + 0.6=9.6+ 3.2=65+ 0.05=54 + 0.12=32+ 0.4=36+ 0.18=0.35 X

6、0.3=1.45=2.84=19.6 +4=22.54=0.396+ 1.2=0.756 +0.36=15.613=0.1815=0.025 X 14=3.0636=0.04X0.12 =3.84 X 2.6=5.76x 3=7.1522=90.75 +3.3=3.68X0.2=16.9+ 0.13=1.55+3.9=3.7x 0.016=13.76X 0.8=5.2 X0.6=8.41.3=6.40.5=4.48 X 0.4=5.255=35.4X4.2=0.042 0.54=0.760.32=0.25X 0.046=2.52 3.4=1.0825=4.8X0.25 =-7 - / 22练习

7、（八）7 + 0.25 =2.5X0.7 X0.8=8-2.5 =16+1.6 =5.61.01=0.36+ 0.64=64.32 + 16=4.2+ 0.1 =72.8+ 0.8 =8.4 +4.2 =13.8+ 9.9 =2.4X2.5 =0.05 X 0.8 =2.56-0.37 =12X2.5 =1.23 X3 =3.2+ 1.6 =3.5+ 3.5 X3=19.6+2=8.8+ 2.2=0.75X4=0.5 X0.8=8.4X0.2=1.6X0.2 =7.2 X0.3=2.8X0.3 =0.9+ 0.15=1.8 0.4=5.5+ 0.55=0.08x 100=2.2 +0.11 =

8、5.46+ 4.54=12.5X0.8=42-0.003=78-0.06=45+ 0.005=81-0.03=7.2+ 0.002=1000-1.25=10-2.5=120-0.024=7.5+ 5=8.6 -0.002=0.0036-3.6=8.6-2=2.5 -0.005=0.36-0.0006=7.5-2=6.3 -21 =8.6+ 0.0043=46-0.0023=8.4 -0.0084=1.28-3.2=9.8-0.7=4.6 -0.023=0.009-0.005=39-0.0003=133.0007=5.05-0.5=123000-1.23=0.00125 -50=5.6-700=

9、760-0.008=4.329 -6=492-0.004=18.63+ 0.03=-9-/22练习（九）-11 - / 229.5 X99=0.29+2.9=63+124+76=9.5 X101 =3.8 X10.1 =22.8+3=3.81 +7=2.17+0.7=5.4-3.6-1.4=12.9-8.5=8+2-8+2=13.5X0.98=0.1-0.047=3.4X0.2=0.577.09X 10.8=0.83.8X10.1 =7.690.125X72=75.98+ 0.23=19.7632+ 42=246.40.4+ 0.01 =5.3+6.7=30X0.01 =157.2X 0.4=

10、2.8286+198=314-202=19=7.09=101=19+7=5.2=13=1.5=1.4=练习（十）-13 -/221025- 768+32=645-4512=10-2.87-7.13=0.96+9.69.9=401X19+284=640+12845=1.25 X 8+1.25=5.370+4.63=2.5 7.14=16.12X 99+16.12=5.0-0.9 +0.9=7.2899+7.28=4.3 X50X0.2=642.64 0.5=3.94+34.30.2=8.9X 1.1 X4.7=2.7 5.4 3.9=3.69.85-5.46=8.05 3.4+7.6=6.584

11、.5 0.9=2.8 X 0.5+1.58=32+ 4.9 0.9=练习（十一）-15-/2270+50- 50+70=13.7+0.98+0.02+4.3=18.6 -3.47 -0.53=72X 101-72=235X28-35X28=2.6X 78+78X7.4=7.26-(5.26-1.5尸X(2.5 +0.25)=1.25 X0,8 X0,5 =(1.5 +0.25) X4=0.12 X0,5 X0.16 =7.28X 99+7.28=4.3 x 50X0.2=5436102X45-328=1001-9036- 18=3.8 X 5.25+14.5=300-4263-21 =0.81

12、 -0.25+5.96=403-13X27=(25+4) X 4=(1.2+ 1.8) X4.5=练习（十二）526+301=223-99=0.45X2.5 =0.8 X1.25 =0.3X3.6 =0.3X0.3 =10X0.07 =0.3X 1.4 =0.05X 7=0.92 X 0.4 =0.2X 0.26 =0.14x 4=0.02 X0.1 =1.2x 0.3=0.2X0.4 =8.2 +1.8 =10035.22 =2.3x 4=2.5 X0.4 =2.4X 5=0.22X4=3.25 0.5=0.9-0.52 =3.99x 1 =0X3.52 =12.5X 8=5.4-2.5 -

13、1.4=2.5 X1.25 X 0.32=12-6.2 -3.8=(180+20)+ 5=1.7+0.43+3.3=7525 4=250 250+5=-16 - / 224.8 -4.8 X0.5=4.8 X 100.1 =4.85+0.35 +1.4=40.5+0.81 X0.18=2.13 X 0X8257=0.25 X 185X40=0.25 X 39+0.25=6.81+6.81 X99=6.8 X 0.75 +0.5=1.53+23.4 +7.2=1.2 X2.5 X4 =练习(十三)(1.2556.50.874.86.81+6.812.5(80.253.751.2+3.2+0.8

14、=3.01 + 1.7+0.99-0.125) X8=X 99+ 56.5=X 3.16+4.64=X(15 + 2.4)=99=(3.80.04)=5.27)1.25=185 40=+ 0.125 2.75=-18 -/22练习（十四）-20 - / 221X0.66+6 =2.7-2.7+ 2.7=5.4+(0.51 +0.17)=0.78X 99+0.78=5.4 X (7.26 +6.05)=8.7X 17.4-8.7 X7.4=12.5 X0.4 X2.5 X8=0.68+ (5.2-3.5) X 1.25=(0.25+2.5+25) X 0.4=5-0.9X0.2+1.8 +0.5

15、=6.4 X 3.28+4.6 X 3.28-3.28=12.27+ 21+ (7.3 -6.6) X2.4=4.4 X0.8 3.4 x 0.8=(9.37+9.37+9.37+9.37)2.5=2.37 6.3+2.373.7=460.33+54 0.33=1.93+2.7+2.07+7.3=26X 15.7 + 15.7 X 24=(2.275 +0.625) X0.28=85.07-(15.3 -4.8)+5.369=40- (3.5 -2.75+0.86 )=37 X 25+268+ 67=练习（十五）(32+360+ 45) X 72=(7590+ 3314) +54=练习（十六）

16、-21 -/22412+ (60736X 14)10.5+(5.2-3.5)=(13.8 -8.7 ) +0.034=6.25+3.85-2.125+3.875=3.375+5.75+2.25+6.625=2.1 X4.3+5.7 X2.1 =6.54+2.4+3.46+0.6=3.375 X 0.97+0.97 X 6.625=95.6 X 1.8+95.6 X 8.2=1.5 X4.2 0.75 +0.25=3.27 X4 +3.27 X 5.7=0.25 X 80-0.45 +0.9=2.4+2.4(5.375-3.375)=7.5-5.7 X1 + 3=12.37-3.25-6.75=

17、16X6.8+2.2 x 16+16=-23 - / 2258.7-16.65 +3.7=0.4 X4.7 X 2.5+(2.3+5.3)=9.31-1.125-7.875=400X (0.62+0.08)=1.2 X(9.6 +2.4) +4.8=(8.58 3.69) X ( 3.4 1.8)=30.6 + (4.5 X0.16)=1.5 X (10.03 15.6+7.5)=4.7+3.91 +(32-29.7)=3.12 X (0.9+ 0.7+0.1 )=9.2+9.728 +3.2 X 1.5=2.4 X 0.75 + 1.25 +2.5=(20.2 X0.6 -2.12 ) +0

18、.1 =(1.5 X 0.9+3.65) +2.5=练习（十七）8.48+0.8 X0.9=101X0.36 + (14.4 X0.05 )=(25.3-9.7) +0.3 X8.5=10.5+(5.1 -4.4)+18.25=-24 -/221025- 1125+4.5 X3.6=4.11 -0.72 X(3.38 2.13)=(6.85.4) X 2.750.9=0.875 X 36+4.05+8.1 =(227+254.68) X 0.5=630+ (2.98 +6.5 X0.08)=(21.88+29.8)+7.6=(8.1 -5.4) +3.6+85.7=(3.44+20.5 X0.

19、32) +0.16=0.54 + (8.7 +45.3) X 28.4=0.1 +1 + 1 + 0.80.1 =练习（十八）-26 -/22(1.25 +6.4) 14.88 +2.4=(4.3-2.01 +2.2) +4=58.8 + (0.6 X0.7 ) +0.02=10.4-7.79 + (0.35 +0.6)=3.6+ (1.2 +0.5) X 5=13.7X 0.25 3.7 +4=3.6X1.25+ 0.32 +0.4=0.8X(3.2 2.99+2.3)=2.5X(6 +9.728 +3.2)=5.2X(4.6 +0.92 X 0.04)=5.4+ (3.94 +0.86)

20、X0.8=19.28+ 1.82 +0.7=10.56 X3.75 -3.75 X 0.56=(1.5-0.8-1)-0.4=练习（十九）(37.62+20.76 ) + 0.042=(17.2-4.5 X3.6) +0.32=-27 -/22X (80.5-9.84 +0.16)=1.52-1.6 X5+5.7=3.8十 (24 25X 0.6)=(6.02 + 2.8 )+0.4 - 2.05=3.27(71.2 71.2 X0.9) +0.25=1.08+ ( 3.94+34.3 X 0.2)=(4.25-4.25 X0.8 ) + 1.7=1.46><5+12.8+0.4X7.5=(0.25 +0.125 ) + ( 0.75 X0.4)=202.5 X4 + 8=(4.8 -4.8 X0.5) +