期末复习计算题1

1、解方程X3.5 =8         5x =20.5          x4.8 =23.56          x÷3.6 =8.27.4x =30        x308 =692      

2、2.5x =75               x÷6.4 =203.6x =7.2          x38.9 =80        x2.4 =21           x÷34 =2.

3、7126÷X=42         13+x=28.5         2.4X=26.4            10x=8.53.5x = 140           2x +5 = 40     

4、    13x 59.71= 5.29       54-X=24   4.2×33x = 5.11     5x+6x = 168         5x1.5 = 4.5       7X7=49          x3.86=

5、5.46       17.89x=12.89       40.8x=57.3      3x2×6=30  2x0.828.2        30.5x7          7.8÷x2.6     

6、60;   80x÷41250.9x275         2x0.4x=48         66x=18           35x13x=9.60.52×54x=16      0.7(x0.9)=42      1.3x2

7、.4×3=12.4    24x8x28.8784x84          4.5×25x180       8x7.2×512      13A28.5（71.4）x2.8    9x5.2×64.8     7x0.8x9.3  

8、60;    x÷0.842.313x98.5         3x249           x0.84x0.8      x÷0.260.520.25x3.7512     x1.8×27.5      x÷

9、;7.23.815     0.6xx24485x63         17.62.4x50       5x1.5x28        2x÷154（62.5）x14.7        （x4.5）÷71.6     

10、      6（x8.9）72（x8.6）÷2.46.4      x0.3x0.5x20           4（x7.8）31.21.5（482x）48        （x32）÷242.5           4x2×644.8÷1.

11、20.5x8.5           2.5x0.6×1.56.6        16÷x84x27×8         12.5x0.9x52.2           2x2.8×210.5×4简便运算（巧算

12、）。2.5×（2.8×0.04）           3.59×101           （8×2.57）×1.2536×0.2564×0.25            0.125×32  

13、         0.04×290.0489.7÷0.125÷0.8            10.27×2.410.2710.27×8.63.571.96.436.1        98.2×10198.2      &

14、#160;   0.125×32×0.599×2.45                    3.75×993.75           4.783.620.385.221.69×3.31.69×5.71.69       36×10.1            4.5×9.8（71.271.2×0.9）÷0.