A child was given the following problem, 'After 3 pens were taken away from me, I had 4 pens left. How many pens did I have to begin with?' A student gave the answer as 1 as according to her, it was 4 - 3 = 1. This reflects that
1
The child does understand addition and subtraction
2
The child is slow learner
3
The question was above the level of the child
4
The child only looks for keywords and associated 'take away' with subtraction only.