问题 解答题

脱式计算下面各题.

8.9×1.1×4.7

2.7×5.4×3.9

3.6×9.85-5.46

8.05×3.4+7.6.

答案

①8.9×1.1×4.7,

=9.79×4.7,

=46.013;

②2.7×5.4×3.9,

=14.58×3.9,

=56.862;

③3.6×9.85-5.46,

=35.46-5.46,

=30;

④8.05×3.4+7.6,

=27.37+7.6,

=34.97.

单项选择题
填空题