Question

4-1.5=2.5.....not 3.5.why?.how to do it?

Answer 1

Answer:

4-1 is 3 and subtracting .5 from it gives 2.5 ...moreover 4 -1 is 3 not 4-1.5

Answer 2

4.0 [0 = 10 due to carryover, 4 = 3]
- 1.5
———
2.5
———