(125+125+125+125+125)x25x32x20如何巧算

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(125+125+125+125+125)x25x32x20如何巧算
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(125+125+125+125+125)x25x32x20如何巧算
(125+125+125+125+125)x25x32x20如何巧算

(125+125+125+125+125)x25x32x20如何巧算
=5×125×25×4×8×20
5和20,4和25,8和125

一千万?