Problem: Jason alikuwa na pipi 20. Alimpa Denny pipi nyingine, Sasa Jason amesalia na pipi 12. Jason alimpa Denny pipi ngapi?
Solution: Jason alianza na pipi 20, lakini sasa ana 12, hivyo alimpa Denny pipi 20 - 12 = 8.
Equation: 20 - 12 = 8.
Answer: 8