Michael wants to lose 10 pounds by June. He lost 3 pounds in March and 4 pounds in April. How much weight does he have to lose in May to meet his goal?
In March and April, he lost 3 + 4 = <T>add(3, 4)=7 pounds.
To meet his goal, he needs to lose 10 – 7 = <T>subtract(10, 7)=3 pounds.
