Error Analysis

Which of the following is not among the three main types of errors in mathematics?

A learner solves 63−28 as 45. What was the likely mistake?

Why might a learner calculate 34+52=86 ; by adding 3+5 and 4+2?

What type of error happens if a learner solves 45+27=62 ?

Which type of error occurs when a learner forgets basic addition or subtraction facts?

What is 72-46 ?

Which one of the following best describes what error analysis in mathematics is?

Conceptual errors arise from misunderstandings of underlying principles