Toán Lớp 5: 12 m ² 5cm ²= ………… cm ²
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Toán Lớp 5: 12 m ² 5cm ²= ………… cm ²
Comments ( 2 )
Ta có:
12m^2 = 120000cm^2
=> 12m^2 5cm^2 = 120000 + 5 = 120005cm^2
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Công thức:
1m^2 = 100dm^2 = 10000cm^2
1cm^2 = 0,01dm^2 = 0,0001m^2
12m² 5cm²=120005cm²
⇔ 12m²=120000cm²
⇒ 12m² 5cm²=120000+5=120005cm²
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