22 + 14 + 10 = 46 90 – 10 – 30 = 50 67 + 2 – 48 = 21 88 – 76 + 35 =...

Bài 1: 22 + 14 + 10 = 46 90 – 10 – 30 = 50 67 + 2 – 48 = 21 88 – 76 + 35 = 47