How many grams in 23 kg?

23000?

How many meters in 2 km?
2000?

How many cm in 89m?
8900?

How many mL in 25 L
25000?

How many m in 7km
7000?

How many mg in 10 g?
10000?

HOw many mm in 15 m?
15000?

How many km in 2500 m?
25?

How many L in 10000mL?
10?

All are right.