Question

convert 20.90 KM into cm​

Answer 1

Answer:

20×1000+90

20000+90=20090cm

hope it helps you

Answer 2

Answer:

HELLO DUDE !

THIS IS THE BASIC UNIT OF ALL THE UNITS

So, understand this in the way !

In this each of the units between there were gaps , that gaps contain 10 units

kilo - hec - dec - basic unit - deci - centi - milli

10 10 10 10 10 10

• multiply each - 10 × 10 × 10 × 10 × 10
• upto - centi

so => 1 km = 100000 cm

=>20.90 = 20.9 × 100000

Your Answer = 2090000cm