五年级小数加减乘除混合运算计算题练习题完整版

1、小数混合运算专项训练1、解方程。(1) 5x = 450(2) 12 (6-x) =42(3) 1.2X6+4x = 122、用简便方法计算。(1) 0.25 X3,2X 12.5(3) 0.25X443、用脱式计算。(1) 2.6+1.4 X 1.5-1.5(4) 8.5x-x=22.5(2) 36X 10.1(4) 22.2X4+17.8 X4(2) (37 3.6 + 4.8) + 12.5(3) 2.6+2.4 X (1.4-1.05)(4) 15.6- 16X (0.25+1.25)30.8-14-(9.85+1,07)60-(9.5+28.9) -0.182.881-0.43-0.

2、24 X 3.520 X (2.44-1.8) -0.4+0.1528-(3.4+1.25 X2.4)2.55X7.1+2.45 X7.118.1X0.92+3.930.4 0.7 0.25777X9+1111 X30.8X 15.5-(3.21+5.79)(31.8+3.2 X 4) + 531.5X4+(6+3)0.64 X 25X7.8+2.22 + 2.5+2.5+236.25 +4.25 X 9.95180-705X624 + 2.4 2.5X0.8(4121+2389) +767115-974469 12+149219.4X 6.1 X2.35.67 0.2-0.620.78+5.

3、436+14. 8X 5 + 4+1 +419464.8+1.8X0.936.72+4.25X9.99. 9x5+6+5 +610. 3-4x8-9-1 +314. 31x5 + 6-5 +616. 5 +9x18-14x2 +720. 3x2+9+1 +335. 95 + (64-45 )36. 178-145 +5X6+427.2 + 0.8-1.2 X56.5X (4.8-1.2X4)28-(3.4+1.25 X2.4)2.55X 7.1+2.45 X 7.1777 X 9+1111 X 3(31.8+3.2X4) +531.5X4 +(6+3)0.64X25X 7.8+2.22 + 2

4、.5+2.5 +25180-705X624+2.4 2.5X0.8(4121+2389) +7671 X 15-974469X12+1492405X(3213-3189)19.4X6.1 X2.35.67X0.2-0.6218.1 X 0.92+3.930.043 24+0.8750.4 0.7 0.250.78+5.436+14.07 0.86+9.12240X 78+ (154-115 )1437X27 + 27X56375- (12+18)+152160+ ( 83-79 ) X 18280+ 840-24 X 5325 + 13X(266 250)85X(95 1440+24)5887

5、0 + (105+20X 2)1437X27 + 27X56381432+ (13X 52 + 78)37.85- (7.85+6.4) X 30(947-599) + 76X6436X(913276+23)192 (54 + 38) X6781432+ (13X 52+78)(947-599) + 76X6460 (9.5 + 28.9)+0.182.881 +0.430.24X 3.50.8X15.5-(3.21+5.79)31.8 3.2X4) +5194 64.8 + 1.8X0.936.72 +4.25 X 9.93.416+ (0.016X35)0.8X (10-6.76)-1.2

6、(6.8-6.8 X 0.55)+ 8.50.12X 4.8 + 0.12X4.8(58+37 ) + (64-9 X5)812-700 + (9+31 X 11)156 X (17.7-7.2) +3(3.2X 1.5+2.5) +1.685+14 X (14+208 +26)120-36 X 4+18+359.72 X 1.6-18.305 +73.2 X (1.5+2.5) +1.6(58+37 ) + (64-9 X5)(6.8-6.8 X 0.55)+ 8.50.12X 4.8+0.12X4.8(3.2X 1.5+2.5) +1.6120-36 X 4 + 18+3515-10.75

7、 X0.4-5.7347+45 X 2-4160 +52(58+37 ) + (64-9 X5)(7.1-5.6 ) X 0.9-1.152.5(3.2X 1.5+2.5) +1.65.4 + 2.6 X (3.7-2.9) +0.6212X6+ (12-7.2) -63.2X6+ (1.5+2.5) +1.6(3.2X 1.5+2.5) +1.6120-144 +18+35347+45 X 2-4160 +52(58+37 ) + (64-9 X5)95 + (64-45 )812-700 + (9+31 X 11)120-36 X 4+18+35(6.8-6.8 X 0.55)+ 8.50

8、.12X 4.8 + 0.12X4.80.8 X15.5-(3.21+5.79)(31.8+3.2X4) +531.5X4+(6+3)0.64 X 25X7.8+2.22 + 2.5+2.5 +219464.8+1.8X0.936.72 +4.25 X 9.95180-705X624-2.4-2.5X 0.8671 X 15-974(4121+2389) +7469X12+1492405X(3213-3189)0.8X (10-6.76)-1.219.4X 6.1 X245.67 0.2-0.6218.1X0.92+3.9324+0.875 X 990.4X0.7X0.250.75X 1021

9、00-56.2331.50+160 + 40(58+370 ) + (64-45 )32.120-144 + 18+3533.347+45 X 2-4160 +5234 (58+37 ) + (64-9 X 5)35.95 + (64-45 )36,178-145 +5X6+42420+580-64 X21 + 2837.812-700 + (9+31 X 11)(136+64) X (65-345 +23)38.85+14 X (14+208 +26)120-36 X 4+18+35(58+37 ) + (64-9 X5)(6.8-6.8 X 0,55) +8.50.12X 4.8 + 0.

10、12X4.8(3.2X 1.5+2.5) +1.63.2 X (1.5+2.5) +1.631.50+160 + 40(58+370 ) + (64-45 )32,120-144 +18+3533.347+45 X 2-4160 +5234 (58+37) + (64-9 X5)35.95 + (64-45 )36,178-145 +5X6+4245.6-1.6 +4=5.38+7.85-5.37=420+580-64 X21 +28812-700 + (9+31 X11)(136+64 ) X (65-345 +23)(284+16) X (512-8208 +18)120-36 X 4+18+35(58+37 ) + (64-9 X 5)(6.8-6.8 X 0,55)+ 8.50.12X 4.8 + 0.12X4.8(3.2X 1.5+2.5) +1.6(23.2X (1.5+2.5) +1.646.7+0.8-1.2 X5=6-1.19 X 3-0.43=47.6.5X (4.8-1.