15 km2 = 150000000000 cm2
=> 15 km2 2 cm2 = 150000000000 cm2 + 2 cm2 = 150000000002 cm2
15 km2 = 150000000000 cm2
=> 15 km2 2 cm2 = 150000000000 cm2 + 2 cm2 = 150000000002 cm2
200mm2= cm2 500mm2= cm2 2cm2= cm2 100mm2= cm2
viết số thích hợp vào chỗ chấm
1m2 = ....................... dm2
630dm2 = ..........................cm2
1km2 = .............................m2
50 000 000m2=......................................km2
15km2 = ..................................m2
7km2 = .........................................m2
500 dm2 = ...........m2
60 000 cm2= ....................m2
60 000 cm2 = ..................dm2
15m2 = ..................cm2
7m2= .......................dm2
10dm2 2cm2= ...............cm2
10 d c m 2 2 c m 2 = . . . c m 2
A. 1002 c m 2
B. 102 c m 2
C. 120 c m 2
D. 1200 c m 2
210dm 2cm2=................cm2
11m2=....................cm2
15dm2 2cm2=............................cm2
10 d m 2 2 c m 2 = . . . . . . c m 2
A. 1002 c m 2
B. 102 c m 2
C. 120 c m 2
D. 1200 c m 2
15 d c m 2 2 c m 2 = . . . . . . c m 2
A. 1502 c m 2
B. 152 c m 2
C. 125 c m 2
10 d m 2 2 c m 2 = . . . . . . c m 2
A. 102
B. 1002
C. 1020
D. 1200