小数加减混合运算练习题100道

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小数加减混合运算练习题100道

小数加减混合运算练习题100 道25.6--1.7

13.75-.83+2.34-0.83+6.6.82+2.9+0.18+9.1 25.48- 48.4+2.78+51.6-0.7823.4+0.8-13.4-7.2

1.27+3.9+0.73+15.1 3.25+

2.76+1.71

3.75- 47.8-7.45+8.2 1.76+0.65+3.240.134+2.66+0.8 5.84-1.8-3.236.8-

4.5+6.98.14-0.53-2.4749.8-9.6+8.87.5+4.9-6

..07-0.38-1.627.5+4.8-6.13.45-4.68+2.55.45+1.79+0.6535.6-1.

8-15.6-7..93+0.19+2.81 .3+2.7-7.3+2..8+8.63+5.2+0.37132.44-

15.2-6.8-3.45

4.85+8.63+0.31.76+3.44+0.356.54-1.76-8.66-2.45-1.02

23.4+3.4-0.26.02+3.6+1.98.07-0.38-1.62.5+4.9-6.5

36.8-3.9-6.883.285+1.79+0.5923.4-0.8+13.2+4.9-8.6

1.29+3.7+

2.71 .93+0.49+2.069-2.45-1.61+0.56+11.3 用简便方法计算。

27.3+73.2+72.785+189+21.85－1.75－0.2768－274－

126 .85+1.89+2.1524.8+14.6+15. 42.5－22.17－7.83 3.8+1.37+6.2+12.17.05－ .73+5.28+4.27+4.72 小数混合运

算专项训练 1、解方程。

5x＝450 12＝42 1.26+4x＝1.5x－x＝22.5 2、用简便方法计算。

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0.23.212.5 0.2544 3、用递等式计算。

2.6+1.41.5－1.5 2.6+2.4 30.8[14-]

[60- 2.8810.43-0.243.5 28- 7779+11113 3610.12.24+17.812.15.616 ]0.120[0.4+0.15]2.557.1+2.457.1

0.8[15.5-] 31.54 0.64257.8+2.2.5+2.52 36.254.259.9180－7 056 242.4－2.50.8 67115-974 5.670.2-0.62 0.78+5.436+1 10.4x89-13 20.x29+13 7.20.8-1.25 2.557.1+2.457.1 6912+1419.46.12.18.10.92+3.930.40.70.2.4+1.x56+5

14.1x56-516.9x18-14x25.56. 178-14556+46.58-779+11115 31.540.64257.8+2.2.5+2.52 194－

64.81.80.6.724.259.9180－7056 242.4－2.50.767115-974 46912+1492 5.670.2-0.62 0.40.70.250.78+5.436+1 24078 2160〔18〕80 85 81432[37.85- ＋7664 405 19.46.12.

18.10.92+3.0.04324+0.87.070.86+9.1143727 ＋2756〔75-〕15＋840245325138870143727＋27563] 306 [192－]67 81432 ＋

7660－0.18 2.8810.43－0.243.50.8〔15.5-〕 5 194

－64.81.80.936.724.259..416 0.8[1.2] 8. 0.12.80.124.8 12-700 156[3] 1.685+14 120-36418+35 9.721.6-18.305.21. 8.50.12.80.124.81.6 120-36418+315-10.750.4-5.47+452-416052 [0.9-1.15] 2.5

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1.65.4[

2.6+0.62] 126-.26+1.1.

120-14418+347+452-41605 5 812-700 120-36418+35 8.50.12.80.124. 0.8 〔 15.5- 〕 1.54 0.64257.8+2.2.5+2.52 194－64.81.80.6.724.259.180－7056 242.4－2.50. 7 67115-974 46912+1492 405 0.8[1.2]

19.46.12.670.2-0.618.10.92+3.924+0.87590.40.70.20.7510

100-56.23 31.50＋

16040 .120-14418+33.347+452-416052.95.178-14556+420+5

80-642128 37.812-700 小数加减混合运算练习题 1

姓名：

6.2+34.5-12..1-5.8-36.2 13.7- 20-6.45-8.3 6.8-1.45+3.72 10-2.84+62.4

7.45+5.8+4.60-

8.95-26.8+

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