There are four groups of numbers below. Can you add the operation symbol to make the result all be 24? (1)2 3 4 6 (2)2 5 6 8 (3)1 2 3 10 (4)3 6 7 8

There are four groups of numbers below. Can you add the operation symbol to make the result all be 24? (1)2 3 4 6 (2)2 5 6 8 (3)1 2 3 10 (4)3 6 7 8

1:(3-2)*4*6
2:6+8+2*5
3:(10-2)*3*1
4:3+6+7+8