用简便方法计算下面各题.
3.06﹣2.5+1.94 3.8+3.98+6.02 9.53﹣(4.53+2.4)
76﹣9.36﹣30.64 2.29+3.7+6.71+6.3 3.25﹣0.13﹣1.25﹣0.87.
用简便方法计算下面各题.
3.06﹣2.5+1.94 3.8+3.98+6.02 9.53﹣(4.53+2.4)
76﹣9.36﹣30.64 2.29+3.7+6.71+6.3 3.25﹣0.13﹣1.25﹣0.87.
试题篮
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