-3与0.5的和乘以2的倒数

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-3与0.5的和乘以2的倒数-3与0.5的和乘以2的倒数-3与0.5的和乘以2的倒数(-3+0.5)×1/2=-2.5×0.5=-1.25(-3+0.5)*1/2=-1.25(-3+0.5)×1/2=

-3与0.5的和乘以2的倒数
-3与0.5的和乘以2的倒数

-3与0.5的和乘以2的倒数
( - 3 +0.5)×1/2
= - 2.5×0.5
= -1.25

(-3+0.5)*1/2=-1.25

(-3+0.5)×1/2
=-2.5×1/2
=-1.25

0.2

1/(-3+0.5)*2= -1/5

1/(-3+0.5)*2=-1/5

(-3+0.5)×1/2
=-2.5×1/2
=-1.25