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3.2 K lượt thi 12 câu hỏi

Nội dung liên quan:

Danh sách câu hỏi:

Câu 1

\(\underline { \times \begin{array}{*{20}{c}}{15}\\{\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{24}\\{\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{33}\\{\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{42}\\{\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{52}\\{\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{63}\\{\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{74}\\{\,\,\,8}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{16}\\{\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{25}\\{\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{34}\\{\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{43}\\{\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{24}\\{\,\,\,9}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{64}\\{\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{75}\\{\,\,\,8}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{17}\\{\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{26}\\{\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{35}\\{\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{44}\\{\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{53}\\{\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{65}\\{\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{72}\\{\,\,\,9}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{18}\\{\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{27}\\{\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{36}\\{\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{45}\\{\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{54}\\{\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{66}\\{\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{73}\\{\,\,\,9}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{19}\\{\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{28}\\{\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{37}\\{\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{46}\\{\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{55}\\{\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{67}\\{\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{74}\\{\,\,\,9}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{26}\\{\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{29}\\{\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{38}\\{\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{47}\\{\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{56}\\{\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{68}\\{\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{75}\\{\,\,\,9}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{27}\\{\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{34}\\{\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{39}\\{\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{48}\\{\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{57}\\{\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{69}\\{\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{76}\\{\,\,\,9}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{24}\\{\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{35}\\{\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{43}\\{\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{49}\\{\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{58}\\{\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{78}\\{\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{77}\\{\,\,\,9}\end{array}} \)

....

Lời giải

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{15}\\{\,\,2}\end{array}} \\\,\,30\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{24}\\{\,\,\,3}\end{array}} \\\,\,\,\,72\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{33}\\{\,\,\,4}\end{array}} \\\,132\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{42}\\{\,\,\,5}\end{array}} \\210\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{52}\\{\,\,\,6}\end{array}} \\312\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{63}\\{\,\,\,7}\end{array}} \\441\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{74}\\{\,\,\,8}\end{array}} \\\,592\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{16}\\{\,\,\,2}\end{array}} \\\,\,\,\,32\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{25}\\{\,\,\,3}\end{array}} \\\,\,\,75\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{34}\\{\,\,\,4}\end{array}} \\\,136\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{43}\\{\,\,\,5}\end{array}} \\\,215\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{24}\\{\,\,\,9}\end{array}} \\216\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{64}\\{\,\,\,7}\end{array}} \\448\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{75}\\{\,\,\,8}\end{array}} \\\,600\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{17}\\{\,\,\,2}\end{array}} \\\,\,\,\,34\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{26}\\{\,\,\,3}\end{array}} \\\,\,\,78\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{35}\\{\,\,\,4}\end{array}} \\\,140\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{44}\\{\,\,\,5}\end{array}} \\220\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{53}\\{\,\,\,6}\end{array}} \\318\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{65}\\{\,\,\,7}\end{array}} \\455\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{72}\\{\,\,\,9}\end{array}} \\\,648\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{18}\\{\,\,\,2}\end{array}} \\\,\,\,36\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{27}\\{\,\,\,3}\end{array}} \\\,\,\,\,81\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{36}\\{\,\,\,4}\end{array}} \\\,144\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{45}\\{\,\,\,5}\end{array}} \\225\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{54}\\{\,\,\,6}\end{array}} \\324\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{66}\\{\,\,\,7}\end{array}} \\462\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{73}\\{\,\,\,9}\end{array}} \\657\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{19}\\{\,\,\,2}\end{array}} \\\,\,\,38\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{28}\\{\,\,\,3}\end{array}} \\\,\,\,84\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{37}\\{\,\,\,4}\end{array}} \\\,148\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{46}\\{\,\,\,5}\end{array}} \\230\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{55}\\{\,\,\,6}\end{array}} \\330\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{67}\\{\,\,\,7}\end{array}} \\469\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{74}\\{\,\,\,9}\end{array}} \\\,666\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{26}\\{\,\,\,2}\end{array}} \\\,\,\,\,52\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{29}\\{\,\,\,3}\end{array}} \\\,\,\,87\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{38}\\{\,\,\,4}\end{array}} \\\,152\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{47}\\{\,\,\,5}\end{array}} \\235\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{56}\\{\,\,\,6}\end{array}} \\336\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{68}\\{\,\,\,7}\end{array}} \\476\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{75}\\{\,\,\,9}\end{array}} \\\,675\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{27}\\{\,\,\,2}\end{array}} \\\,\,\,54\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{34}\\{\,\,\,3}\end{array}} \\\,102\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{39}\\{\,\,\,4}\end{array}} \\\,156\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{48}\\{\,\,\,5}\end{array}} \\240\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{57}\\{\,\,\,6}\end{array}} \\\,342\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{69}\\{\,\,\,7}\end{array}} \\\,483\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{76}\\{\,\,\,9}\end{array}} \\\,684\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{24}\\{\,\,\,3}\end{array}} \\\,\,\,72\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{35}\\{\,\,\,3}\end{array}} \\\,105\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{43}\\{\,\,\,4}\end{array}} \\\,172\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{49}\\{\,\,\,5}\end{array}} \\\,245\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{58}\\{\,\,\,6}\end{array}} \\\,348\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{78}\\{\,\,\,7}\end{array}} \\\,546\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{77}\\{\,\,\,9}\end{array}} \\\,693\end{array}\)

Câu 2

\(\underline { \times \begin{array}{*{20}{c}}{125}\\{\,\,\,\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{134}\\{\,\,\,\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{143}\\{\,\,\,\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{152}\\{\,\,\,\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{169}\\{\,\,\,\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{142}\\{\,\,\,\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{121}\\{\,\,\,\,\,\,8}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{126}\\{\,\,\,\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{135}\\{\,\,\,\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{144}\\{\,\,\,\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{153}\\{\,\,\,\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{162}\\{\,\,\,\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{143}\\{\,\,\,\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{112}\\{\,\,\,\,\,\,7}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{127}\\{\,\,\,\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{136}\\{\,\,\,\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{145}\\{\,\,\,\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{154}\\{\,\,\,\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{163}\\{\,\,\,\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{144}\\{\,\,\,\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{114}\\{\,\,\,\,\,\,8}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{128}\\{\,\,\,\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{137}\\{\,\,\,\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{146}\\{\,\,\,\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{155}\\{\,\,\,\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{164}\\{\,\,\,\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{146}\\{\,\,\,\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{115}\\{\,\,\,\,\,\,8}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{129}\\{\,\,\,\,\,\,2}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{138}\\{\,\,\,\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{147}\\{\,\,\,\,\,\,4}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{156}\\{\,\,\,\,\,\,5}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{165}\\{\,\,\,\,\,\,6}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{239}\\{\,\,\,\,\,\,3}\end{array}} \)

....

\(\underline { \times \begin{array}{*{20}{c}}{245}\\{\,\,\,\,\,\,3}\end{array}} \)

....

Lời giải

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{125}\\{\,\,\,\,\,2}\end{array}} \\\,\,\,250\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{134}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,402\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{143}\\{\,\,\,\,\,4}\end{array}} \\\,\,\,572\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{152}\\{\,\,\,\,\,\,5}\end{array}} \\\,\,\,760\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{169}\\{\,\,\,\,\,\,5}\end{array}} \\\,\,\,845\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{142}\\{\,\,\,\,\,7}\end{array}} \\\,\,\,994\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{121}\\{\,\,\,\,\,\,8}\end{array}} \\\,\,\,968\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{126}\\{\,\,\,\,\,\,2}\end{array}} \\\,\,\,252\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{135}\\{\,\,\,\,\,3}\end{array}} \\\,\,\,405\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{144}\\{\,\,\,\,\,4}\end{array}} \\\,\,\,576\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{153}\\{\,\,\,\,\,5}\end{array}} \\\,\,\,765\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{162}\\{\,\,\,\,\,\,6}\end{array}} \\\,\,\,972\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{143}\\{\,\,\,\,\,\,6}\end{array}} \\\,\,\,858\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{112}\\{\,\,\,\,\,\,7}\end{array}} \\\,\,\,784\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{\,127}\\{\,\,\,\,\,\,2}\end{array}} \\\,\,\,254\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{136}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,408\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{145}\\{\,\,\,\,\,\,4}\end{array}} \\\,\,\,580\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{\,154}\\{\,\,\,\,\,\,5}\end{array}} \\\,\,\,770\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{\,163}\\{\,\,\,\,\,\,6}\end{array}} \\\,\,\,978\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{144}\\{\,\,\,\,\,\,6}\end{array}} \\\,\,\,\,864\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{114}\\{\,\,\,\,\,\,8}\end{array}} \\\,\,\,912\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{128}\\{\,\,\,\,\,2}\end{array}} \\\,\,\,256\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{\,137}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,\,411\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{\,146}\\{\,\,\,\,\,\,4}\end{array}} \\\,\,\,\,584\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{\,155}\\{\,\,\,\,\,\,5}\end{array}} \\\,\,\,\,775\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{164}\\{\,\,\,\,\,\,6}\end{array}} \\\,\,\,\,984\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{146}\\{\,\,\,\,\,\,6}\end{array}} \\\,\,\,\,876\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{115}\\{\,\,\,\,\,\,8}\end{array}} \\\,\,\,920\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{129}\\{\,\,\,\,\,2}\end{array}} \\\,\,\,258\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{138}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,\,414\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{\,147}\\{\,\,\,\,\,\,4}\end{array}} \\\,\,\,\,588\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{156}\\{\,\,\,\,\,\,5}\end{array}} \\\,\,\,780\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{165}\\{\,\,\,\,\,\,6}\end{array}} \\\,\,\,990\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{239}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,717\end{array}\)

\(\begin{array}{l}\underline { \times \begin{array}{*{20}{c}}{245}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,\,735\end{array}\)

Lời giải

47 × 8 = 376

63 × 5 = 315

29 × 6 = 174

85 × 4 = 340

72 × 9 = 648

38 × 7 = 266

56 × 3 = 168

99 × 2 = 198

19 × 7 = 133

84 × 6 = 504

45 × 8 = 360

67 × 5 = 335

93 × 4 = 372

26 × 9 = 234

78 × 3 = 234

52 × 7 = 364

68 × 5 = 340

49 × 8 = 392

37 × 6 = 222

94 × 6 = 564

25 × 7 = 175

89 × 4 = 356

62 × 9 = 558

13 × 8 = 104

57 × 3 = 171

74 × 5 = 370

37 × 9 = 333

96 × 7 = 672

4.6

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