题文
下面各题,怎样简便就怎样算.
19.98×37﹣199.8×1.9+1998×0.82 9999×7+1111×37
[
﹣(
﹣
)]×
(70+
)×
.
下面各题,怎样简便就怎样算.
19.98×37﹣199.8×1.9+1998×0.82 9999×7+1111×37
[
﹣(
﹣
)]×
(70+
)×
.
试题篮
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