`9cm = 0,09 m`
`12 m = 0,012 km`
`29 cm^2 = 0,29 dm^2`
`8 cm^2 = 0,0008 m^2`
`56 ha = 0,56 km^2`
`7g= 0,007 kg`
9 cm = 0,09 m
12 m = 0,012 km
29 cm2 = 0,29 dm2
8 cm2 = 0,0008 m2
56 ha = 0,56 km2
7g = 0,007 kg
9cm=0,09 m
12m=0,012 km
29cm vuông=2,9 dm vuông
8cm vuông=0,08 m vuông
56ha=5,6 km vuông
7g=0,007 kg
9cm = 9/100m =0,09m
12m=12/1000km =0,012 km
29cm2=29/100 dm2= 0,29dm2
8cm2=8/10000m2=0,0008 m2
56 ha=56/100km2=0,56 km2
7g =7/1000 kg =0,007 kg
`9cm = ? m`
`1m = 10dm`
`1m = 10 xx 10 = 100cm`
`1cm = 1/100m`
`9cm = 9 xx 1/100 = 9/100 m`
`=>` `9cm = 9/100m`
_______________
`12m = ? km`
`1km =1000m`
`1m = 1/1000km`
`12m = 12 xx 1/1000 = 12/1000 = 3/250 km`
`=> 12m = 3/250 km`
_____________
`29cm^2 = ? dm^2`
`1dm^2 = 100cm^2`
`1cm^2 = 1/100dm^2`
`29cm^2 = 29 xx 1/100 = 29/100dm^2`
`=> 29cm^2 = 29/100dm^2`
_____________
`8cm^2 = ? m^2`
`1 dm^2 = 100cm^2`
`1 m^2 = 100 xx 100 = 10 000 cm^2`
`1 cm^2 = 1/10000m^2`
`8cm^2 = 8 xx 1/10000 = 8/(10 000) = 1/1250m^2`
`=> 8cm^2 = 1/1250m^2`
__________
`56ha = ? km^2`
`1km^2 = 100ha`
`1ha = 1/100km^2`
`56ha = 56 xx 1/100km^2 = 56/100 = 14/25km^2`
`=> 56ha = 14/25km^2`
______________
`7g = ? kg`
`1kg = 1000g`
`1g = 1/1000kg`
`7g = 7 xx 1/1000 = 7/1000kg`
`= 7g = 7/1000kg`
`#C_n`
9 cm = 0,09 m
12 m = 0,012 km
29 cm2 = 0,29 dm2
8 cm2 = 0,0008 m2
56 ha = 0,56 km2
7g = 0,007 kg
9cm=9/100m
12m=12/1000km
29cm vuông=29/100dm vuông
8cm vuông=8/10000m vuông
56ha=5,6km vuông
7g=7/1000kg
