6 dam + 15dam = 21dam 16hm – 9hm = 7hm
52dam + 37dam = 89dam 76dam – 25dam = 51 dam
48dam + 23dam = 71dam 63hm – 18hm = 45hm
6 dam + 15dam = 21dam 16hm – 9hm = 7hm
52dam + 37dam = 89dam 76dam – 25dam = 51 dam
48dam + 23dam = 71dam 63hm – 18hm = 45hm
Tính (theo mẫu):
Mẫu 26m x 2 = 52m 69cm : 3 = .....cm
25dam x 2 = .....dam 48m : 4 = .....m
18hm x 4 = .....hm 84dm : 2 = .....dm
82km x 5 = .....km 66mm : 6 = .....mm
Tính theo mẫu:
Mẫu: 2dam + 3dam = 5dam
25dam + 50dam =
8dam + 12dam =
36dam + 18dam =
24dam – 10dam = 14dam
45dam – 16dam =
67 dam – 25dam =
72dam – 48dam =
Tính theo mẫu:
67 dam – 25dam =
Điền số thích hợp vào dấu chấm: 13dam + 7dam = ........ dam = ......... hm
A. 20; 2
B. 20; 200
C. 20; 20
D. 2; 2
Tính
a) 25dam + 42dam = .....dam
83hm – 75hm = .....hm
13km x 5 = .....km
b) 672m + 314m = .....m
475dm – 56dm = .....dm
48cm : 6 = .....cm
1km = ....hm
1hm =....dam
1dam =....m
1hm =....m
1dm =....mm
3dam =....m
6hm =....m
5dam =....m
7hm =....dam
5km =....hm
tính:
8 dam + 5 dam =
57 hm – 28 hm =
12 km x 4 =
Tính theo mẫu :
32 dam x 3 = 96dam
25 m x 2 =
15 km x 4 =
34 cm x 6 =
96 cam : 3 = 32 cm.
36 hm : 3 =
70 km : 7 =
55 dm : 5 =
Số ?
8 hm = ….m
8 m = ….dm
9 hm = ….m
6 m = ….cm
7 dam = ….m
8 cm = ….mm
3 dam = ….m
4 dm = ….mm