(ii) 17 + 3 − 5 18 4 12
18×2 = 36 4 × 9 = 36 12×4 = 36
17×2 = 34 36 36
3×9 = 27 36 36
5×3 = 15 36 36
34 + 27 − 15 = 46 36 36 36 36
= 46÷2 = 23
A Record of my academic journey while studying for a BSc (hons) in Computing and IT with the Open University
(ii) 17 + 3 − 5 18 4 12
18×2 = 36 4 × 9 = 36 12×4 = 36
17×2 = 34 36 36
3×9 = 27 36 36
5×3 = 15 36 36
34 + 27 − 15 = 46 36 36 36 36
= 46÷2 = 23