Đáp án:
Giải thích các bước giải:
$2+4+6+...+996+998$
$=(2+996)+(4+994)+(6+992)+...+998$
$=998+998+998+...+998$
$=998×250$
$=249500$
Mn ưii giúp e với ạ!!! huhu E cảm ơn nhìuu nhìuu ạ♥
Trong các số thập phân 423,15 phần thập phân là : A.15 B. 15/10 C. 15/100 D. 15/1000 Một cửa hàng cả ngày bán được 450 tấn gạo ,trong đó buổi sáng bán được 65% số gạo . Hỏi buồi chiều của hàng đó bán được bao nhiêu tấn gạo ? Giúp mik
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