0.5乘以12.5乘以2.5乘以128(要简便)
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0.5乘以12.5乘以2.5乘以128(要简便)0.5乘以12.5乘以2.5乘以128(要简便)0.5乘以12.5乘以2.5乘以128(要简便)=0.5×2×12.5×8×2.5×4×2=(0.5×2
0.5乘以12.5乘以2.5乘以128(要简便)
0.5乘以12.5乘以2.5乘以128(要简便)
0.5乘以12.5乘以2.5乘以128(要简便)
=0.5×2 ×12.5×8 ×2.5×4 ×2
=(0.5×2) ×(12.5×8) ×(2.5×4) ×2
=1×100×10×2
=2000
0.5*12.5*2.5*128
=0.5*128*12.5*2.5
=64*12.5*2.5
=12.5*8*2.5*8
=100*20
=2000
128*0.5=64 64*2.5=160 160*10+160*2.5=2000
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