Tính (theo mẫu):
Mẫu: 9dam + 4dam = 13dam
18hm – 6hm = 12hm
6dam + 15dam 16hm – 9hm
52dam + 37dam 76dam – 25dam
48hm + 23hm 63hm – 18hm
6dam + 15dam = 21dam
52dam + 37dam = 89dam
48hm + 23hm = 71dam
16hm – 9hm = 7hm
76dam – 25dam = 51dam
63hm – 18hm = 45hm
-- Mod Toán lớp 3
Copyright © 2021 HOCTAP247