111 = 111                 123 < 456                   156 < 213

126 < 158                 126 < 453                   154 > 123

125 = 125                  156 > 153                   156 < 561

111=111           123<456         156<213

126<158           126<453         154>123

125=125           156>153         156<561    

nhầm

561+541=1102

561+541=602

x:3=678-561

x:3=117

x=117x3

x=351

678-x*3=561

       x*3=678-561

        x*3=117

        x   =117:3

        x   =39

156+156=312

 = 312 nhớ k .Kèm theo kb nha

\(\begin{array}{*{20}{c}}{a)\,\,}\\{}\\{}\end{array}\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{536}\\{\,\,\,\,\,8}\end{array}}\\\hline{\,\,\,544}\end{array}\)                           \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{\,\,\,67}\\{829}\end{array}}\\\hline{\,\,\,\,996}\end{array}\)                            \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{432}\\{284}\end{array}}\\\hline{\,\,\,\,716}\end{array}\)

\(\begin{array}{*{20}{c}}{b)\,\,}\\{}\\{}\end{array}\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{253}\\{\,\,\,\,\,7}\end{array}}\\\hline{\,\,\,\,246}\end{array}\)                     \(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{561}\\{\,\,\,42}\end{array}}\\\hline{\,\,\,519}\end{array}\)                             \(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{795}\\{638}\end{array}}\\\hline{\,\,\,\,057}\end{array}\)

684

615

808

tk nhé thank!

cảm ơn!

bye bye

\(234+450=684\)

\(359+256=615\)

\(657+151=808\)

100 +169 +236 +365 +658 +321 +698 +359 +365 +385 + 685 +559 +666 +554 +589 +589 +59+96 *65=13597

Chắc thế!

100 +169 +236 +365 +658 +321 +698 +359 +365 +385 + 685 +559 +666 +554 +589 +589 +59+96 *65=484445