Easy Arithmetic Puzzles

#4347: 9 _ 4 _ 6 _ 7 = -1 easy #4361: 9 _ 4 _ 8 _ 3 = 6 easy #4367: 9 _ 4 _ 8 _ 9 = 2 easy #4371: 9 _ 4 _ 9 _ 6 = 3 easy #4372: 9 _ 4 _ 9 _ 2 = 8 easy #4376: 9 _ 4 _ 9 _ 8 = 2 easy #4378: 9 _ 5 _ 2 _ 4 = -1 easy #4382: 9 _ 5 _ 3 _ 6 = -1 easy #4396: 9 _ 5 _ 4 _ 2 = -1 easy #4397: 9 _ 5 _ 4 _ 8 = -1 easy #4400: 9 _ 5 _ 6 _ 3 = -1 easy #4403: 9 _ 5 _ 8 _ 4 = -1 easy #4409: 9 _ 6 _ 2 _ 3 = 5 easy #4413: 9 _ 6 _ 2 _ 2 = 5 easy #4414: 9 _ 6 _ 2 _ 2 = 1 easy #4415: 9 _ 6 _ 2 _ 2 = 6 easy #4417: 9 _ 6 _ 2 _ 3 = 1 easy #4418: 9 _ 6 _ 2 _ 4 = -1 easy #4427: 9 _ 6 _ 2 _ 4 = 3 easy #4428: 9 _ 6 _ 2 _ 8 = 6 easy #4434: 9 _ 6 _ 3 _ 4 = 1 easy #4435: 9 _ 6 _ 3 _ 5 = -1 easy #4439: 9 _ 6 _ 3 _ 2 = 1 easy #4443: 9 _ 6 _ 4 _ 3 = 1 easy #4447: 9 _ 6 _ 4 _ 1 = 5 easy #4449: 9 _ 6 _ 4 _ 2 = 4 easy #4450: 9 _ 6 _ 4 _ 2 = 3 easy #4455: 9 _ 6 _ 4 _ 5 = 1 easy #4458: 9 _ 6 _ 4 _ 7 = -1 easy #4465: 9 _ 6 _ 5 _ 3 = -1 easy #4469: 9 _ 6 _ 6 _ 9 = 5 easy #4478: 9 _ 6 _ 8 _ 2 = 6 easy #4486: 9 _ 6 _ 8 _ 6 = 2 easy #4488: 9 _ 6 _ 8 _ 7 = 5 easy #4490: 9 _ 6 _ 8 _ 9 = 3 easy #4494: 9 _ 6 _ 9 _ 6 = 5 easy #4496: 9 _ 6 _ 9 _ 2 = 3 easy #4497: 9 _ 6 _ 9 _ 3 = 2 easy #4511: 9 _ 7 _ 9 _ 7 = 1 easy #4513: 9 _ 8 _ 2 _ 4 = 5 easy #4515: 9 _ 8 _ 2 _ 6 = 6 easy #4519: 9 _ 8 _ 3 _ 4 = 3 easy #4520: 9 _ 8 _ 3 _ 6 = 5 easy #4523: 9 _ 8 _ 3 _ 4 = 6 easy #4529: 9 _ 8 _ 4 _ 3 = 3 easy #4530: 9 _ 8 _ 4 _ 5 = -1 easy #4539: 9 _ 8 _ 4 _ 3 = 6 easy #4547: 9 _ 8 _ 5 _ 4 = -1 easy