2018-06-11
展开全部
例1、5.76+13.67+4.24+6.33 =(5.76+4.24)+(13.67+6.33) =10+10 =20 例2、37.24+23.79-17.24 =37.24-17.24+23.79 =20+23.79 =43.79 例3、 4×3.78×0.25 =4×0.25×3.78 =1×3.78 =3.78 例4、 125×246×0.8 =125×0.8×246 =100×246 =24600 例5、(2.5+12.5)×40 =2.5×40+12.5×40 =100+500 =600 例6、3.68×4.79+6.32×4.79 =(3.68+6.32)×4.79 =10×4.79 =47.9 例7. 26.86×25.66-16.86×25.66 =(26.86-16.86) ×25.66 =10×25.66 =256.6 例8、 5.7×99+5.7 = 5.7×(99+1) =5.7×100 =570 例9、34×9.9 =34×(10-0.1) =34×10-34×0.1 =340-3.4 =336.6 例10、 57×101 =57×(100+1) =57×100+57×1 =5757 例11、7.8×1.1 =7.8×(1+0.1) =7.8×1+7.8×0.1 =7.8+0.78 =8.58 例12、25×32 =25×4×8 =100×8 =800 例13、125×0.72 =125×8×0.09 =1000×0.09 =90 例14、87×2/85 =(85+2) ×2/85 =85×2/85+2×2/85 =2+4/85 =2又4/85 例15、56.5-3.7-6.3 =56.5-(3.7+6.3) =56.5-10 =46.5 例16、32.6÷0.4÷2.5 =32.6÷(0.4×2.5) =32.6÷1 =32.6 例16、86.7×0.356+1.33×3.56 =8.67×3.56+1.33×3.56 =(8.67+1.33)×3.56 =10×3.56 =35.6 例17、15.6÷4-5.6×1/4 =15.6×1/4-5.6×1/4 =(15.6-5.6)×1/4 =10×1/4 =2又1/2 例18、16/23×27+16×19/23 =27/23×16+16×19/23 =16×(27/23+19/23) =16×2 =32
艾都探矿事业部
2024-11-22 广告
2024-11-22 广告
高精度三分量磁力仪是用于测量磁场的三分量测量仪器。其原理基于霍尔效应,即电流在磁场中受到洛伦兹力作用,在垂直于电流和磁场的平面上产生霍尔电压。通过测量这个电压,可以反推出磁感应强度的大小,从而实现对磁场的测量。具体来说,三分量磁力仪由三个相...
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