用你喜欢的方法计算．
2.9×99+2.925×11.2×423.25﹣6.75﹣3.25．
计算．
6.33×101﹣6.33 35.6﹣5×1.73 1.6×55.4﹣55.4×0.617.68÷5.2+2.7×1.5．
脱式计算．（能简算的要简算）
（1）1.08×0.8÷0.27
（2）102×0.45
（3）22.78÷1.25÷0.8
（4）0.34×101﹣0.34．
递等式计算（能简算的要简便运算）：
15.68﹣（7.78﹣4.32）﹣2.320.25×3.2×1.259.99×1.01
4.63×1.4+46.3×0.8617.5÷0.8÷12.50.9+9.9+99.9+999.9．
脱式计算，能简算的要简算．
20﹣9.18﹣0.826.53﹣（1.53+2.6）5.52﹣1.074﹣0.926 4.21+1.04+0.79．
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