Medium Arithmetic Puzzles

#3246: 7 _ 2 _ 9 _ 6 = 10 medium #3253: 7 _ 3 _ 2 _ 8 = -5 medium #3255: 7 _ 3 _ 3 _ 9 = 8 medium #3256: 7 _ 3 _ 3 _ 9 = 6 medium #3263: 7 _ 3 _ 6 _ 9 = 9 medium #3265: 7 _ 3 _ 6 _ 8 = 11 medium #3269: 7 _ 3 _ 6 _ 1 = 13 medium #3271: 7 _ 3 _ 6 _ 3 = 11 medium #3273: 7 _ 3 _ 6 _ 4 = 10 medium #3282: 7 _ 3 _ 7 _ 5 = 15 medium #3287: 7 _ 3 _ 8 _ 6 = 11 medium #3288: 7 _ 3 _ 8 _ 2 = -5 medium #3293: 7 _ 3 _ 9 _ 3 = 8 medium #3294: 7 _ 3 _ 9 _ 6 = 9 medium #3295: 7 _ 3 _ 9 _ 3 = 6 medium #3306: 7 _ 4 _ 2 _ 8 = 8 medium #3307: 7 _ 4 _ 2 _ 3 = 13 medium #3313: 7 _ 4 _ 2 _ 7 = -7 medium #3315: 7 _ 4 _ 2 _ 3 = 11 medium #3317: 7 _ 4 _ 2 _ 4 = 10 medium #3323: 7 _ 4 _ 3 _ 2 = 13 medium #3330: 7 _ 4 _ 3 _ 9 = -5 medium #3332: 7 _ 4 _ 4 _ 8 = 9 medium #3338: 7 _ 4 _ 6 _ 8 = 10 medium #3342: 7 _ 4 _ 7 _ 2 = -7 medium #3344: 7 _ 4 _ 7 _ 4 = 16 medium #3346: 7 _ 4 _ 8 _ 2 = 8 medium #3347: 7 _ 4 _ 8 _ 6 = 10 medium #3351: 7 _ 4 _ 8 _ 4 = 14 medium #3355: 7 _ 4 _ 8 _ 3 = 11 medium #3357: 7 _ 4 _ 8 _ 4 = 10 medium #3359: 7 _ 4 _ 8 _ 5 = 9 medium #3361: 7 _ 4 _ 8 _ 6 = 8 medium #3366: 7 _ 4 _ 9 _ 3 = -5 medium #3370: 7 _ 5 _ 2 _ 6 = -8 medium #3377: 7 _ 5 _ 6 _ 2 = -8 medium #3380: 7 _ 5 _ 7 _ 3 = 15 medium #3386: 7 _ 6 _ 2 _ 3 = 11 medium #3387: 7 _ 6 _ 2 _ 4 = 10 medium #3390: 7 _ 6 _ 2 _ 5 = -8 medium #3394: 7 _ 6 _ 2 _ 7 = 14 medium #3396: 7 _ 6 _ 3 _ 9 = 9 medium #3402: 7 _ 6 _ 3 _ 7 = -7 medium #3404: 7 _ 6 _ 3 _ 1 = 13 medium #3406: 7 _ 6 _ 3 _ 3 = 11 medium #3408: 7 _ 6 _ 3 _ 4 = 10 medium #3414: 7 _ 6 _ 4 _ 2 = 10 medium #3421: 7 _ 6 _ 4 _ 8 = -5 medium