Ответ:
\(4\cdot1=4\), \(4\cdot5=20\), \(4\cdot6=24\), \(4\cdot7=28\), \(4\cdot8=32\), \(4\cdot9=36\).
\(5\cdot4=20\), \(6\cdot4=24\), \(7\cdot4=28\), \(8\cdot4=32\), \(9\cdot4=36\).
\(16:4=4\), \(20:4=5\), \(24:4=6\), \(28:4=7\), \(32:4=8\), \(36:4=9\).
\(20:5=4\), \(24:6=4\), \(28:7=4\), \(32:8=4\), \(36:9=4\).
