Please help me in conversion?

Question

500g to kg to mg
2.5kg to g to hg
0.45mg to g to cg
2500cg to g to kg
2600g to mg to kg

Answer 1

if you learn the prefixes in order it helps.
milli
centi
deci
unit
deka
hecto
kilo

Each step from one prefix to the next represents one decimal place.
500g=.5 kg or 500000 mg Each conversion moved up or down 3 prefixes so that is 3 decimal places

2.5kg = 2500g = 25hg
.45mg=.00045g = .045cg
2500cg = 25g=.025kg
2600g = 2600000mg = 2.6kg

Answer 2

Conversion Guide:
1 kg = 1000 g
1 hg = 100 g
1g = 1000 mg
1 g = 100 cg

Solutions:
1.] 500g - kg - mg
500g x (1kg/1000g) = 1/2kg = 0.5kg
500g x (1000mg/1g) = 500,000mg

2.] 2.5kg - g - hg
2.5kg x (1000g/1kg) = 2500g
2.5kg x (1000g/1kg) x (1hg/100g) = 25hg

3.] 0.45mg - g - cg
0.45mg x (1g/1000mg) = 0.00045g = 4.5 x 10^(-4) g
0.45mg x (1g/1000mg) x (100cg/1g) = 0.045cg

4.] 2500cg - g - kg
2500cg x (1g/100cg) = 25g
2500cg x (1g/100cg) x (1kg/1000g) = 0.025 kg

5.] 2600g - mg - kg
2600g x (1000mg/1g) = 2,600,000mg
2600g x (1kg/1000g) = 2.6kg

Answer 3

1g=1000mg
1g=100cg
1 hg=100g
1kg=1000g
so,
500g=.5kg=500000mg
2.5kg=2500g=25hg
.45mg=.00045g=.0045cg
2500cg=25g=.025kg
2600g=2600000mg=2.6kg