Take Mr Soh’s $15.50 out of the $90 to find Mr Tan; the extra part is how much more Mr Tan has.

Mr Soh$15.50Mr Tan$15.50?how much more?$90

Plain numbers are given; italic underlined numbers are worked out.

  1. Mr Tan → $90 − $15.50 = $74.50
  2. More → $74.50 − $15.50 = $59

Mr Tan has $59 more than Mr Soh.

Check: $74.50 + $15.50 = $90, and $74.50 − $15.50 = $59. ✓