5 = 27  5B) X  7 = 36  7C) X  132 = 312  (5 – 3 – 2 )

Bài 73: Tìm x:

a) x : 5 = 27 5

b) x 7 = 36 7

c) x 132 = 312 (5 – 3 – 2 )