What's the sum of the first 40 positive odd integers?
他刚开始做prealgebra...
What's the sum of the first 40 positive odd integers?
他刚开始做prealgebra...
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就那么多,再多做就是重复,到97/98%就行了
-青裁-
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09/14/2023 postreply
19:09:00
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这样子啊,谢谢
-gladys-
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09/14/2023 postreply
19:10:59
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请问哪个rating是啥意思?是同一topic的题库量百分比吗?
-Pilsung-
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09/14/2023 postreply
19:31:12
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你可以设置难度,有insanely difficult,有normal,好像设置insanely hard,rating
-Pilsung-
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09/14/2023 postreply
19:33:43