Question

Harry and Terry are each told to calculate 8−(2+5) . Harry gets the correct answer. Terry ignores the parentheses and calculates 8−2+5 . If Harry's answer is H and Terry's answer is T , what is H−T ?

Answer 1

Harry's answer: 8-(2+5)=8-7=1
Terry's answer: 8-2+5=6+5=11
H-T is 11-1 which is equal to 10.