(125+125x125x125)x8x25
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(125+125x125x125)x8x25
=125x(1+125x125)x8x25
=125x8x25x15626
=1000x25x15626
=1000x390650
=390650000
咨询记录 · 回答于2021-07-10
(125+125x125x125)x8x25
(125+125x125x125)x8x25你好,括号里面后面3个125是乘法不是加法么?
是乘法
(125+125x125x125)x8x25=125x(1+125x125)x8x25=125x8x25x15626=1000x25x15626=1000x390650=390650000
我想到的是后面3个125是加法,这就可以简便计算