Đặt tính rồi tính. 3 246 + 4 721     47 282 + 2 514 139 820 + 240 134    482 824 + 420 546

Trả lời

$\begin{array}{l}+\begin{array}{l}\text{ 3 246}\\ 4\text{ 721 }\end{array}\\ \text{ 7 967 }\end{array}$        $\begin{array}{l}+\begin{array}{l}\text{ 47 282}\\ \text{ 2 514 }\end{array}\\ \text{ 49 796 }\end{array}$         $\begin{array}{l}+\begin{array}{l}\text{ 139 820}\\ \text{ 240 134 }\end{array}\\ \text{ 379 954 }\end{array}$            $\begin{array}{l}+\begin{array}{l}\text{ 482 824}\\ \text{ 420 546 }\end{array}\\ \text{ 903 370 }\end{array}$