3-	24*			4*
		200*	45*
				6*
3/	2/
		20*

Difficulty: Medium ()

30*			12*
10+		1-
	9+		400*
2-
	12*

Difficulty: Difficult ()

30*				8+
	9+	9+
		10*
96*			1	10+
5

Difficulty: Difficult ()

6+	8+	10+		5*
9+	6*	20*		2/
			8+
	10*

Difficulty: Medium ()