下面各题,怎样算简便就怎样算.
6.8÷4﹣1.2×25%+4 ×0.25 3.7×+5.3×0.75+
38× 9.9+99.9+999.9 (+)×24×15.
下面各题,怎样算简便就怎样算.
6.8÷4﹣1.2×25%+4 ×0.25 3.7×+5.3×0.75+
38× 9.9+99.9+999.9 (+)×24×15.
试题篮
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