💡 Hint
1 kilogram (kg) = 1000 grams (g)
kg × 1000 = grams
Multiply the kilograms by 1000, then add the extra grams.
3 kg and 200 g
= (3 × 1000) + 200
= 3200 grams
= (3 × 1000) + 200
= 3200 grams
Example: 2 kilograms and 500 grams