Medium Arithmetic Puzzles

1306 puzzles total. Find the missing + − × ÷ operators to complete each equation.

#4577: 9 _ 9 _ 2 _ 3 = 7 medium #4578: 9 _ 9 _ 2 _ 4 = 9 medium #4589: 9 _ 9 _ 3 _ 4 = -3 medium #4590: 9 _ 9 _ 3 _ 5 = -6 medium #4594: 9 _ 9 _ 3 _ 2 = 7 medium #4601: 9 _ 9 _ 4 _ 3 = -3 medium #4603: 9 _ 9 _ 4 _ 2 = 9 medium #4607: 9 _ 9 _ 5 _ 3 = -6 medium #4610: 9 _ 9 _ 6 _ 8 = -3 medium #4615: 9 _ 9 _ 8 _ 6 = -3 medium