To correctly answer question four students need the knowledge and understanding of multiplying decimals by the power of ten. Students who have met the Australian Curriculum strand for Year 6 mathematics, Multiply and divide decimals by powers of 10 (ACMNA130) (ACARA, n.d.) will correctly answered B, 2. Clarke, Roche & Mitchell (2008) point out, a common misconception among students is that multiplication always makes numbers larger. This misconception combined with Reys et al. (2012) misconception of decimals being whole numbers would lead students to incorrectly answer A, 20. Answer D, 0.02, was also made available for students that move the decimal place one place in the wrong direction, therefore dividing 0.2 by 10 instead of multiplying
