Viết theo mẫu :
Mẫu : 7 m2 76 dm2 = 7 m2 + \(\dfrac{76}{100}\) m2 = 7 \(\dfrac{76}{100}\) m2
Viết dưới dạng số đo :
a) Bằng mét vuông : b) Bằng ki-lô-mét vuông :
3 m2 45 dm2 = ............................... 1 km2 23 hm2 = ..............................
2 m2 3 dm2 = ............................... 2 km2 4 km2 = ..............................
67 dm2 = .................... 35 hm2 = ....................
5 dm2 = ................... 9 hm2 = ....................
a) Bằng mét vuông : b) Bằng ki-lô-mét vuông :
3 m2 45 dm2 = 3m2 + \(\dfrac{45}{100}m^2=3\dfrac{45}{100}m^2\) / 1 km2 23 hm2 =\(1hm^2+\dfrac{23}{100}hm^2=1\dfrac{23}{100}hm^2\)
2 m2 3 dm2 = \(2m^2 + \dfrac{30}{100}=2\dfrac{30}{100}m^2\) / 2 km2 4 km2 = \(2hm^2+\dfrac{40}{100}=2\dfrac{40}{100}hm^2\)
67 dm2 = \(\dfrac{67}{100}m^2\) / 35 hm2 = \(\dfrac{35}{100}hm^2\)
5 dm2 = \(\dfrac{50}{100}m^2\) / 9 hm2 = \(\dfrac{90}{100}hm^2\)
a) Bằng mét vuông
3m² 45dm² = 3m² + \(\dfrac{45}{100}\) m² = 3\(\dfrac{45}{100}\) m²
2m² 3dm² = 2m² + \(\dfrac{3}{100}\) m² = 2\(\dfrac{3}{100}\) m²
67dm² = \(\dfrac{67}{100}\) m²
5dm² = \(\dfrac{5}{100}\)m²
b) Bằng ki - lô - mét vuông:
1km² 23hm² = 1km² + \(\dfrac{23}{100}\) km² = 1\(\dfrac{23}{100}\) km²
2km² 4hm² = 2km² + \(\dfrac{4}{100}\) km² = 2\(\dfrac{4}{100}\) km²
35hm² = \(\dfrac{35}{100}\) km²
9hm² = \(\dfrac{9}{100}\)km²