Viết số thích hợp vào ô trống:

Câu hỏi: Viết số thích hợp vào ô trống:

A \(\begin{array}{l}a)\,\,\left( 1 \right):\,\,20\,;\,\,\left( 2 \right):\,\,40\,;\,\,\left( 3 \right):\,\,25\,;\,\,\left( 4 \right):\,\,125\\b)\,\,\left( 5 \right):\,\,3\,;\,\,\left( 6 \right):\,\,7\,;\,\,\left( 7 \right):\,\,8\,;\,\,\left( 8 \right):\,\,2\end{array}\)

B \(\begin{array}{l}a)\,\,\left( 1 \right):\,\,2\,;\,\,\left( 2 \right):\,\,4\,;\,\,\left( 3 \right):\,\,5\,;\,\,\left( 4 \right):\,\,25\\b)\,\,\left( 5 \right):\,\,3\,;\,\,\left( 6 \right):\,\,7\,;\,\,\left( 7 \right):\,\,8\,;\,\,\left( 8 \right):\,\,2\end{array}\)

C \(\begin{array}{l}a)\,\,\left( 1 \right):\,\,2\,;\,\,\left( 2 \right):\,\,44\,;\,\,\left( 3 \right):\,\,25\,;\,\,\left( 4 \right):\,\,125\\b)\,\,\left( 5 \right):\,\,3\,;\,\,\left( 6 \right):\,\,7\,;\,\,\left( 7 \right):\,\,4\,;\,\,\left( 8 \right):\,\,2\end{array}\)

D \(\begin{array}{l}a)\,\,\left( 1 \right):\,\,20\,;\,\,\left( 2 \right):\,\,40\,;\,\,\left( 3 \right):\,\,5\,;\,\,\left( 4 \right):\,\,25\\b)\,\,\left( 5 \right):\,\,7\,;\,\,\left( 6 \right):\,\,3\,;\,\,\left( 7 \right):\,\,8\,;\,\,\left( 8 \right):\,\,2\end{array}\)