问题 解答题

计算0.25×(1.3+1.3+1.3+1.3)的简便算法是(0.25×4)×1.3______.

答案

0.25×(1.3+1.3+1.3+1.3),

=0.25×1.3×4,

=(0.25×4)×1.3,

=1×1.3,

=1.3.

故答案为:正确.

选择题
判断题