A) X – 452 = 77 + 48 B.X + 58 = 64 + 58 C.X – 1 – 2 – 3 – 4 = 0

bài 1: - TUYEN TAP DE THI HSGLOP 3
Lớp 3 Toán TUYEN TAP DE THI HSGLOP 3
Bài 1: Tìm x:a) x – 452 = 77 + 48 b.x + 58 = 64 + 58 c.x – 1 – 2 – 3 – 4 = 0