Question

10dm 2 2cm 2 = ……………cm 2 10 000cm 2 = …………m 2
1954cm 2 = ………dm 2 …………cm 2 20dm 2 10cm 2 = …………..cm

Answer 1

10 dm² 2 cm² = 1002 cm²
10000 cm² = 1 m² 
1954 cm² = 19 dm² 54 cm²
20 dm² 10 cm² = 2010 cm²

Answer 2

\(10dm^22cm^2=10\cdot100+2=1002cm^2\)

\(10000cm^2=10000:10000=1m^2\)

\(1945cm^2=19dm^245cm^2\)

 

câu cuối là ....cm hay là ....cm2 vậy ạ?