(2)60μm=60×10-6m=6×10-5m;
(3)0.69L=0.69×1000mL=690mL;
(4)1.3h=1.3×3600s=4680s;
故答案为:(1)4800;(2)6×10-5;(3)690;(4)4680.
(1)4.8m=4.8×1000mm=4800mm;(2)60μm=60×10-6m=6×10-5m;
(3)0.69L=0.69×1000mL=690mL;
(4)1.3h=1.3×3600s=4680s;
故答案为:(1)4800;(2)6×10-5;(3)690;(4)4680.
1厘米=10毫米4.4cm =44mm
4.8cm =48mm
5.5cm =55mm
5.4cm =54mm
5.8cm =58mm
π≈3.14
例如周长是44mm
直径=44÷3.14≈14.01mm
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