I’ll give brainliest!! Can someone please help me with this I forgot :((

Answer:
1) 420mm
2) 837grams
3) 0.89litres
4) 0.072
5) 0.00267
Step-by-step explanation:
1) divide by 10
2) multiply by 1000
3) divide by 1000
4) divide by 1000
5) divide by 10,000