Story time, third grader me would have done this no questions about it.
Having to solve multiplication and recently had learned the table of 9 trick i was looking if there where other tricks I could find.
The first one was number x10 and what i observed is that if you do times ten. You take the number. And you put 1 “0” behind it.
Interesting…. I thought
But the next one multiplied with a single digit so how could i apply that theory.
Simple. 1+0 is 1, which is a single digit so if you multiply by 10, you actually multiply by 1+0 which means you put 1 zeros behind it
Multiple by 2 is short for multiply
By 2+0, put 2 zeros behind it
Multiply by 9, put 9 zeros behind it.
I definitely knew this is not what we had learned, and knew there was a “chance” i was going to fail all of these, i also even knew some of the actual answers however i also believed there was a chance that i found an
alternative equally good solution, and I consciously decided to take that risk because I wanted to know if i was right. Maybe I discovered something new
My teacher was not happy to say the least, and in that (actual) furry did treat me unfair and it still bothers me. Because i got a zero for the assignment… while i was very certain that the 2 occurrences of x10 did have the appropriate solution.
Story time, third grader me would have done this no questions about it.
Having to solve multiplication and recently had learned the table of 9 trick i was looking if there where other tricks I could find.
The first one was number x10 and what i observed is that if you do times ten. You take the number. And you put 1 “0” behind it.
Interesting…. I thought
But the next one multiplied with a single digit so how could i apply that theory.
Simple. 1+0 is 1, which is a single digit so if you multiply by 10, you actually multiply by 1+0 which means you put 1 zeros behind it
Multiple by 2 is short for multiply By 2+0, put 2 zeros behind it
Multiply by 9, put 9 zeros behind it.
I definitely knew this is not what we had learned, and knew there was a “chance” i was going to fail all of these, i also even knew some of the actual answers however i also believed there was a chance that i found an alternative equally good solution, and I consciously decided to take that risk because I wanted to know if i was right. Maybe I discovered something new
My teacher was not happy to say the least, and in that (actual) furry did treat me unfair and it still bothers me. Because i got a zero for the assignment… while i was very certain that the 2 occurrences of x10 did have the appropriate solution.