Mình cũng chịu bạn ạ vì mình mới học lớp 5 thôi

k mình nha

Chúc bạn học giỏi

Mình cảm ơn bạn nhiều

thì thế

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mỗi bạn 8 cái thì bạn cuối cùng chỉ được 6 cái kẹo.-> Mỗi bạn 6 cái thì thiếu 2 cái.

Mỗi bạn 8 cái thì hơn mỗi bạn 7 cái :

8 - 7 = 1 cái

Nhóm Nam có :

(2 + 12) : 1 = 14 bạn

Số kẹo Nam có :

14 x 8 - 2 = 110 cái

giua chung co 11 so le thi co:

11x2+1=23(khòag cach)

so be la :(2015-23):2=996

so lon la 2015-996=1019

k mk nha bạn

anime đồ ăn

150-(36+a):a x 5 = 100

=> (36+a):a x 5 = 50

=> (36+a) : a= 10

=> 36 : a+ a: a= 10

=> 36:a + 1= 10

=> 36:a= 9

=> a=4

đáp số 4

A = 7+7² + 7³ +....+ 7¹⁰⁰

    = (7+7²) + (7³ + 7⁴)+.....+(7⁹⁹+7¹⁰⁰⁾

     = 7(1+7) + 7³(1+7)+.......+7⁹⁹(1+7)

    = 8(7+7²+7³+.....+ 7⁹⁹) chia hết cho 8  

bạn đánh dấu đi mình ko hiểu ...