Выполни вычисления

• \(2\)
• \(4\)
• \(10\)
• \(7\)
• \(21\)
• \(9\)

1. \(6\cdot2:3=\) [ ]
2. \(3\cdot (5+1):9=\) [ ]
3. \(3\cdot (20-13)=\) [ ]
4. \(21:7+4=\) [ ]
5. \(15:5+3\cdot2=\) [ ]
6. \(10:5+8=\) [ ]