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125×5×25×256 怎样简便计算
来源:www.zuowenzhai.com 作者:编辑 日期:2024-05-23
125×5×25×256有什么简便运算??
欢迎追问〜新年快乐!
原式=5^3·5·5^2·2^8
=5^6·2^6·4
=4×10^6
=4000000
望采纳啊啊
原式=125x5x25x8x2x4x4
=(125x8)x(5x2)x(25x4)x4
=1000x10x100x4
=4000000
125×5×25×256
=125×5×25×(2×4×8×4)
=(125×8)×(5×2)×(25×4)×4
=1000×10×100×4
=4000000
125×5×25×256
=125×5×25×4×64
= (125×4)×(25×4)×(5×16)
=500×100×80
=4000000
原式=25*5*25*16*16=5*16*5*16*5*25=80*80*125=1600*125=200000
125*5*25*256=125*5*25*8*2*4*4=125*8*5*2*25*4*4=1000*10*100*4=4000000
分解为25x5x5x25x4x4x4x4,即256分解为四个四相乘。然后用结合法,25x4等于100。最后得到100x100x100x4等于4000000。欢迎追问〜新年快乐!
原式=5^3·5·5^2·2^8
=5^6·2^6·4
=4×10^6
=4000000
望采纳啊啊
原式=125x5x25x8x2x4x4
=(125x8)x(5x2)x(25x4)x4
=1000x10x100x4
=4000000
125×5×25×256
=125×5×25×(2×4×8×4)
=(125×8)×(5×2)×(25×4)×4
=1000×10×100×4
=4000000
125×5×25×256
=125×5×25×4×64
= (125×4)×(25×4)×(5×16)
=500×100×80
=4000000
(编辑:贾垄颜)