问题 解答题

简便计算.

8×13×12536×25463+799.

答案

(1)8×13×125,

=8×125×13,

=1000×13,

=13000;

(2)36×25,

=4×9×25,

=4×25×9,

=100×9,

=900;

(3)463+799,

=463+(800-1),

=463+800-1,

=1263-1,

=1262.

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