Tính nhẩm :
10 − 2 = ..... 16 − 2 = .....
10 : 2 = ..... 16 : 2 = .....
20 − 2 = ..... 20 : 2 = .....
10 − 2 = 8 16 − 2 = 14
10 : 2 = 5 16 : 2 = 8
20 − 2 = 18 20 : 2 = 10
-- Mod Toán 2
Copyright © 2021 HOCTAP247