12.5*16.7怎么简便运算
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12.5*16.7怎么简便运算
12.5*16.7怎么简便运算
12.5*16.7怎么简便运算
=12.5+(16+0.7)
=12.5*8*2+12.5*0.7
=100*2+8.75
=208.75
12.5*16.7怎么简便运算
12.5*16.7怎么简便运算
12.5*16.7怎么简便运算
=12.5+(16+0.7)
=12.5*8*2+12.5*0.7
=100*2+8.75
=208.75