56.5-41.2+43.5-58.8 怎样简算?

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56.5-41.2+43.5-58.8怎样简算?56.5-41.2+43.5-58.8怎样简算?56.5-41.2+43.5-58.8怎样简算?56.5-41.2+43.5-58.8=(56.5+43

56.5-41.2+43.5-58.8 怎样简算?
56.5-41.2+43.5-58.8 怎样简算?

56.5-41.2+43.5-58.8 怎样简算?
56.5-41.2+43.5-58.8
=(56.5+43.5)-(41.2+58.8)
=100-100
=0
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