Answer :

4.23-2.75

= 4.00 + 0.20 + 0.03 - 2.00 - 0.70 - 0.05

= 2.00 + 0.20 + 0.03 - 0.70 - 0.05

= 2.00 - 0.50 - 0.02

= 1.50 - 0.02

= 1.48
because four is bigger than two so thats how there different sorry if I didnt help.