Answer
For Part A, the decimal is correct.
For Part B, the decimal is incorrect.
For Part C, the decimal is incorrect.
For Part D, the decimal is correct.
Work Step by Step
Part A: $10 \div 4 = 2.5 $. This is correct.
Part B: $1 \frac{1}{3} = 1.33333333,$ not $1.3.$ The decimal is incorrect.
Part C: $0.003 = 3 \div 1000$, not $3 \div 100. $
$3 \div 100 $ is $0.03.$ The decimal is incorrect.
Part D: $6\div 5 = 1.2.$ The decimal is correct.