In present pilot study the relation between mathematical performance, test anxiety and mathematical self image is being examined in two Swedish grade 3 pupils. A difference between the high achieving and the low achieving pupils is possible to discern. A negative or uncertain mathematical self image seems to be connected to test anxiety, but not to performance when we look at these two young pupils. The experience of taking the test is affecting the high and low achiever differently. There are indications that the context and the kind of information given about the tests and the pupil's abilities affect both the level of test anxiety and the pupil’s evolving mathematical self image. Educational implications are being discussed.