五年级小数加减乘除混合运算计算题练习题

1、小数混合运算专项训练1、解方程。(1)5x=450(3)1.2X6+4x=122、用简便方法计算。(1)0.25X3.2X12.5(3)0.25X443、用递等式计算。(1)2.6+1.4X1.51.5(2)12(6x)=42(4)8.5xx=22.52)36X10.14)22.2X4+17.8X4(2)(373.6F4.8)F12.53)2.6+2.4X(1.41.05)(4)15.616X(0.25+1.25)30.8F14-(9.85+1.07)60-(9.5+28.9)F0.182.881F0.43-0.24X3.520X(2.441.8)F0.4+0.1528-(3.4+1.25X2

2、.4)2.55X7.1+2.45X7.1777X9+1111X30.8X15.5-(3.21+5.79)31.5X4F(6+3)(31.8+3.2X4)-F50.64X25X7.8+2.22F2.5+2.5F236.25F4.25X9.95180705X624F2.42.5X0.8(4121+2389)F7671X15-974469X12+149219.4X6.1X2.35.67X0.2-0.6218.1X0.92+3.930.4X0.7X0.250.78+5.436+14.8X5F4+1F49.9x5F6+5F610.3F4x8F9-1F314.31x5F6-5F616.5F9x18-14x

3、2F720.3x2F9+1F335.95F(64-45)36.178-145F5X6+427.2F0.8-1.2X56.5X(4.8-1.2X4)28-(3.4+1.25X2.4)2.55X7.1+2.45X7.1777X9+1111X3(31.8+3.2X4)F5947-599)76X6436X(913-27623)192-(54+38)X6731.5X4F(6+3)0.64X25X7.8+2.22F2.5+2.5F2194-64.81.8X0.936.724.25X9.95180-705X6242.4-2.5X0.8(4121+2389)7671X15-974469X12+1492405X

4、(3213-3189)19.4X6.1X2.35.67X0.2-0.6218.1X0.92+3.930.043X24+0.8750.4X0.7X0.250.78+5.436+14.07X0.86+9.12240X78F(154-115)1437X27+27X563(75-(12+18)F152160F(83-79)X18280+84024X532513X(266-250)85X(95-144024)58870(105+20X2)1437X27+27X56381432(13X52+78)37.85-(7.85+6.4)X3081432(13X52+78)(947599)+76X6460(9.5+

5、28.9)0.182.8810.430.24X3.50.8X15.5-(3.21+5.79)(31.83.2X4)F581432(13X52+78)(947599)+76X6460(9.5+28.9)0.1881432(13X52+78)(947599)+76X6460(9.5+28.9)0.1819464.81.8X0.936.724.25X9.93.416(0.016X35)81432(13X52+78)(947599)+76X6460(9.5+28.9)0.1881432(13X52+78)(947599)+76X6460(9.5+28.9)0.180.8X(106.76)F1.2(6.

6、8-6.8X0.55)F8.50.12X4.80.12X4.881432(13X52+78)(947599)+76X6460(9.5+28.9)0.1881432(13X52+78)(947599)+76X6460(9.5+28.9)0.18(58+37)(64-9X5)812-700(9+31X11)156X(17.7-7.2)F381432(13X52+78)(947599)+76X6460(9.5+28.9)0.1881432(13X52+78)(947599)+76X6460(9.5+28.9)0.18(3.2X1.5+2.5)F1.685+14X(14+20826)120-36X41

7、8+3581432(13X52+78)(947599)+76X6460(9.5+28.9)0.1881432(13X52+78)(947599)+76X6460(9.5+28.9)0.189.72X1.6-18.30573.2X(1.5+2.5)F1.6(58+37)F(64-9X5)81432(13X52+78)(947599)+76X6460(9.5+28.9)0.1881432(13X52+78)(947599)+76X6460(9.5+28.9)0.18(6.8-6.8X0.55)F8.50.12X4.80.12X4.8(3.2X1.5+2.5)F1.681432(13X52+78)(

8、947599)+76X6460(9.5+28.9)0.1881432(13X52+78)(947599)+76X6460(9.5+28.9)0.18120-36X418+35(58+37)(64-9X5)15-10.75X0.4-5.7347+45X2-4160F52(7.1-5.6)X0.9-1.15F2.581432(13X52+78)(947599)+76X6460(9.5+28.9)0.1881432(13X52+78)(947599)+76X6460(9.5+28.9)0.183.2X1.5+2.5)F1.65.4F2.6X(3.7-2.9)+0.6212X6(127.2)-63.2

9、X6+(1.5+2.5)F1.6(3.2X1.5+2.5)F1.612014418+35347+45X2416052(58+37)(649X5)95F(64-45)812-700(9+31X11)12036X418+35(6.8-6.8X0.55)F8.50.12X4.80.12X4.80.8X15.5(3.21+5.79)(31.8+3.2X4)F531.5X4F(6+3)0.64X25X7.8+2.22F2.5+2.5F2194-64.81.8X0.936.724.25X9.95180705X6242.4-2.5X0.8(4121+2389)7671X15974469X12+1492405

10、X(32133189)0.8X(106.76)F1.219.4X6.1X245.67X0.20.6218.1X0.92+3.9324+0.875X990.4X0.7X0.250.75X10210056.2331.50+16040(58+370)(6445)32.12014418+3533.347+45X241605234(58+37)(649X5)35.95(64-45)36.1781455X6+42420+58064X212837.812-700(9+31X11)(136+64)X(65-34523)38.85+14X(14+20826)120-36X418+35(58+37)(64-9X5

11、)(6.8-6.8X0.55)F8.50.12X4.80.12X4.8(3.2X1.5+2.5)F1.63.2X(1.5+2.5)F1.631.50+16040(58+370)(64-45)32.120-14418+3533.347+45X2-41605234(58+37)(64-9X5)35.95(64-45)36.178-1455X6+42420+580-64X2128812-700(9+31X11)(136+64)X(65-34523)(284+16)X(512-820818)120-36X418+35(58+37)(64-9X5)(6.8-6.8X0.55)F8.50.12X4.80.12X4.8(3.2X1.5+2.5)F1.6(23.2X(1.5+2.5)F1.645.6-1.64=5.38+7.85-5.37=46.70.8-1.2X5=6-1.19X3-0.4