问题 解答题
用简便方法计算.
59+134+4136×2545×9×4.
答案

(1)59+134+41,

=(59+41)+134,

=100+134,

=234;

(2)36×25,

=9×4×25,

=9×(4×25),

=9×100,

=900;

(3)45×9×4,

=45×4×9,

=180×9,

=1620.

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