下面各题,怎样算简便就怎样算.
①1080+270÷18﹣864 ②7.54++2.46+ ③(2.4﹣)÷0.625+
④2.5×12.5×40×0.8 ⑤98.9×99+98.9 ⑥40.5÷×[(1﹣)×1.2].
下面各题,怎样算简便就怎样算.
①1080+270÷18﹣864 ②7.54++2.46+ ③(2.4﹣)÷0.625+
④2.5×12.5×40×0.8 ⑤98.9×99+98.9 ⑥40.5÷×[(1﹣)×1.2].
试题篮
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