0.2km是多少米,完成下列单位换算40s=
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完成下列单位换算40s=
(1)∵1h=60min=3600s;
∴40s=40×
1 |
60 |
(2)∵1km=1000m=10000dm;
∴300m=300×0.001km=0.3km=3000dm;
(3)∵1mm=0.001m;1m=1×106µm;
∴200mm=200×0.001m=0.2m=2×105µm.
故答案为:0.67;0.01;0.3;3000;0.2;2×105
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(1)∵1h=60min=3600s;
∴40s=40×
1 |
60 |
(2)∵1km=1000m=10000dm;
∴300m=300×0.001km=0.3km=3000dm;
(3)∵1mm=0.001m;1m=1×106µm;
∴200mm=200×0.001m=0.2m=2×105µm.
故答案为:0.67;0.01;0.3;3000;0.2;2×105