1	24*
6*		48*
12*
4/

Difficulty: Easy ()

8+	5+	8+
			36*
	7+

Difficulty: Medium ()

4+		576*
8*
		4	4+
	1-

Difficulty: Easy ()

2/	48*
	2/	6*
12*			1-
	3/

Difficulty: Medium ()