What is the sum of 1.5 1.05 2.0?

1.50

1.05

2.00

+_____

4.55

==== Starting from the right and moving left, add column by column .

0+5+0 = 5 Right hand column

5 + 0 + 0 = 5 Middle column

Decimal point

1 + 1 + 2 = 4 (Left hand (units) column).