JumpStart by Robb Armstrong for May 31, 2016
May 30, 2016
June 01, 2016
Transcript:
Ray: Lynn...this is the kid I was telling you about Lynn: Hi jojo! I heard you have a whole bunch of baseball cards! Ive been collecting since I was your age! Ray: Lynn has collected a dozen cards each year since she was ten years old. She's 32 now... Ray is a good tutor!
That word problem needs a clarification – do you count both the year she turned 10 and the year she turned 32? If so, the answer is 23×12. If you don’t count both those years, it would be 22×12. The problem of partial years is inherent in any word problem involving ages, anniversaries, or time that has to be represented as a whole number. For the whole year we say you were one year old, you were actually more than one year old. For this problem, the whole second year she was collecting cards, she actually had more than 12 cards.