TÍNH.34 + 3 – 27 = . . . 60 – 40 + 17 =. . . .69 + 30 – 29 = ....

bài 1: - BAI KIEM TRA 1 (TOAN)
BAI KIEM TRA 1 (TOAN)
Bài 1: Tính.34 + 3 – 27 = . . . 60 – 40 + 17 =. . . .69 + 30 – 29 = . . . 96 - 35 + 31 =. . . .