
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.


213x37 + 213x39 + 23x213 + 213
= 213x37 + 213x39 + 23x213 + 213x1
= 213 x ( 37 + 23 ) + ( 39 + 1 )
= 213 x 60 + 40
= 213 x100
= 21300

Số cần tìm là:
213 x 8 = 1704
Đ/S 1704
Chúc bạn học tốt phamthicamtu

231 x 48 - 48 x 113
= 48 x ( 231- 113 )
= 48 x 100
= 4800
k cho mk nha mk nhanh nhất !

đơn giản 2005-205-(1+2) =1800-3=1797 ; 1797-213=1584 duyệt nhé Khánh




213 x 37 + 213 x 37 + 23 x 213 + 213
= 213 x 37 + 213 x 37 + 23 x 213 + 213 x 1
= 213 x ( 37 + 37 + 23 + 1 )
= 213 x 98
= 20874
2007 x 16 - 2007 x 14 - 2007 x 2 + 2007
= 2007 x 16 - 2007 x 14 - 2007 x 2 + 2007 x 1
= 2007 x ( 16 - 14 - 2 - 1 )
= 2007 x 9
= 18063
Chúc bạn học tốt~

\(\frac{426}{x}=213\)
\(\Rightarrow213x=426\)
\(\Rightarrow x=2\)
vay \(x=2\)
\(\frac{488}{x}=122\)
\(\Rightarrow122x=488\)
\(\Rightarrow x=4\)
vay \(x=4\)
\(\frac{3860}{x}=965\)
\(\Rightarrow965x=3860\)
\(\Rightarrow x=4\)
vay \(x=4\)
682,2769
341x2=682
213x13=2769