题目内容

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