200000m= km,500000cm= m,0.0035mm= m,0.005m= km,0.007μm= m,0.00056m= nm 用科学计数法计算!
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200000m=km,500000cm=m,0.0035mm=m,0.005m=km,0.007μm=m,0.00056m=nm用科学计数法计算!200000m=km,500000cm=m,0.003
200000m= km,500000cm= m,0.0035mm= m,0.005m= km,0.007μm= m,0.00056m= nm 用科学计数法计算!
200000m= km,500000cm= m,0.0035mm= m,0.005m= km,0.007μm= m,0.00056m= nm 用科学计数法计算!
200000m= km,500000cm= m,0.0035mm= m,0.005m= km,0.007μm= m,0.00056m= nm 用科学计数法计算!
200000m=2×10^2 km,500000cm= 5×10^3m,0.0035mm=3.5×10^(-6) m,
0.005m= 5×10^(-6)km,0.007μm=7×10^(-9) m,0.00056m= 5.6×10^5nm
6370km m=?cm
18cm=( )m=( )km
5400km=( )m=（)cm
200000m= km,500000cm= m,0.0035mm= m,0.005m= km,0.007μm= m,0.00056m= nm 用科学计数法计算!
860cm=( )cm 7000m=( )km
单位换算2.5km =多少m=多少cm
2.5km =多少m=多少cm
6370km=?m=?cm 科学计数法
860cm=( )dm 7000m=( )km
1cm/s=多少km/h 1km/h=多少m/s?
1cm=( )km
1cm=?km,
单位换算 急用·9m=（）cm 12km=（）m900cm=（）m 2m+60cm=（）cm 23m-20m=（）dm 150dm=（）m 30cm=（）mm 5m6cm=（）cm3cm+8mm =()mm 86km-59km=()m 4700m=()km()m 2050m=()m()cm 50cm+50cm=()m7000m+3km=()km
600cm=()m,70m=()dm,5000m=()km、数学谢!
mm,cm,dm,m,km是什么?
cm、dm、m、km是不是数学量词
单位长度换算1km=( )m=( )dm=( )cm=( )mm=( )μm=( )nm1m=( )km=( )dm=( )cm=( )mm=( )μm=( )nm1dm=( )km=( )m=( )cm=( )mm=( )μm=( )nm1cm=( )km=( )m=( )dm=( )mm=( )μm=( )nm1mm=( )km=( )m=( )dm=( )cm=( )μm=( )nm1μm=( )km=( )m=( )dm=( )cm=( )mm=( )
单位换算18km/h=< >m/s20cm/s=< >km/h 1.5m/s=< >cm/s