0.08正負(fù)10%怎么算?0.08正負(fù)20%怎么算?0.08正負(fù)30%怎么算?0.08正負(fù)40%怎么算?0.08正負(fù)50%怎么算?

0.08正負(fù)10%怎么算?0.08正負(fù)20%怎么算?0.08正負(fù)30%怎么算?0.08正負(fù)40%怎么算?0.08正負(fù)50%怎么算?
請(qǐng)寫清楚點(diǎn),本人小學(xué)沒(méi)學(xué)好要一看就能看明白的那種
能把怎么計(jì)算的寫下來(lái)么?這5種都要,

數(shù)學(xué)人氣：329 ℃時(shí)間：2020-05-15 07:36:33

優(yōu)質(zhì)解答

這五個(gè)的做法是一樣的,以第一個(gè)為例,即0.08±10%×0.08
正負(fù)也就是指上下百分之10,上就是加上0.08的10%,下就是減去0.08的10%.
以此類推.能說(shuō)的在具體點(diǎn)么？5種都要0.08±0.08×10%=[0.08-0.08×10%,0.08+0.08×10%]=[0.072,0.088]0.08±0.08×20%=[0.08-0.08×20%,0.08+0.08×20%]=[0.064,0.096]0.08±0.08×30%=[0.08-0.08×30%,0.08+0.08×30%]=[0.056,0.104]0.08±0.08×40%=[0.08-0.08×40%,0.08+0.08×40%]=[0.048,0.112]0.08±0.08×50%=[0.08-0.08×50%,0.08+0.08×50%]=[0.04,0.12]

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0.08正負(fù)10%怎么算?0.08正負(fù)20%怎么算?0.08正負(fù)30%怎么算?0.08正負(fù)40%怎么算?0.08正負(fù)50%怎么算?

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