Remember that kilo means 1000.
1 Kg = 1000 g
1 g = 1/000 of a Kg
1 g = 0,001 Kg
Thus:
30 g = 0,03 Kg
Personally, I call it the "zero point zero rule" aka 0,0-rule: When you got any "tens of" any unit (grams, meter, joul etc) you just add "zero point zero" to get its "kilo"-equivalent.
47 g = 0,047 Kg
99 m = 0,099 Km
71 J = 0,0 KJ
Remember that kilo means 1000.
1 Kg = 1000 g
1 g = 1/000 of a Kg
1 g = 0,001 Kg
Thus:
30 g = 0,03 Kg
Personally, I call it the "zero point zero rule" aka 0,0-rule: When you got any "tens of" any unit (grams, meter, joul etc) you just add "zero point zero" to get its "kilo"-equivalent.
47 g = 0,047 Kg
99 m = 0,099 Km
71 J = 0,0 KJ
