5 60-27 60-7 67-20 83-50 80-53 80-3 (80 - 20) - 9 100 - (4+36) 90- (53-50)

$$60 - 27 = 33$$

$$60 - 7 = 53$$

$$67 - 20 = 47$$

$$83 - 50 = 33$$

$$80 - 53 = 27$$

$$80 - 3 = 77$$

$$(80 - 20) - 9 = 60 - 9 = 51$$

$$100 - (4 + 36) = 100 - 40 = 60$$

$$90 - (53 - 50) = 90 - 3 = 87$$