A tank holds 6 litres before 2.375 litres are removed. Enter the number of litres remaining.
Correct answer
3.625
Explanation
Pad the starting amount to 6.000 and subtract: 6.000 - 2.375 = 3.625 litres remain. Computing 6 - 2 = 4 and then attaching 0.375 would ignore the borrowing required across decimal places.