Sometimes I forget that I was a bit of a brainiac in math. Or even that I taught middle school common core math before having my kids.
But then I will come across something, that reminds me.
Take for instance a recent afternoon.
See I was on Facebook surfing only to come across this Facebook Photo Share:
It didn’t take me long to deduce the answer, because like I said I taught middle school common core math.
But I decided to take to my Facebook blog page to ask my followers if they knew the answer.
The incentive for my Facebook Fans was quite simple.
The first blogger to answer correctly would win free ad space from me.
I really wasn’t expecting to get much of a turn out or interaction from this one simple Facebook post.
But I got a ton of comments. Plus even after I declared a winner, the guesses kept coming in days later.
Many answered correctly with an answer of 90,. While a few didn’t pay close enough attention. See they missed that the first number skipped from 6 to 9 multiplying by 8 instead of 10 forgetting to compensate for the number jump. Still many others apparently guessed randomly.
In case you still don’t understand how to arrive at the right answer of 90, stay tuned. See we must first look at the first two numbers of 2 and 6 to figure out the pattern.
In order to get from 2 to 6, we must multiply 2 times 3. This equals 6.
From there each number pair increases by one, as follows:
- (3,12) = 3 x 4 = 12
- (4,20) = 4 x 5 = 20
- (5,30) = 5 x 6 = 30
- (6,42) = 6 x 7 = 42
We are missing 7 and 8. But it would be 7 x 8 = 56 and 8 x 9 = 72.
Therefore for 9, we have 9 x 10 = 90!
Did you get this question right?
This is a question teaching about math patterns. It is also something that you could expect an early middle school or even late elementary school Common Core math student to be given for homework.
By the way, I often read comments in my Facebook feed from my Facebook friends complaining about the types of questions given nightly for their own young kids for math homework since the inception of Common Core. The main complaint is that as parents many can’t even answer the questions themselves. Or even help their kids to find the solution.
Like I said I am not in the norm as for the most part can answer these types of questions.
Like it or not, my kids won’t be able to stump me with common core math homework as they do get older.
Which may or may not be a blessing for them!
Yet, this got my wheels spinning a bit more. See I was wondering how many grown-ups could outscore a Common Core 5th grader on their math homework.
Want to see if you are smarter than a 5th grader in common core math?
Take this 3 question 5th grade Common Core math quiz now:
1. My smartie box has 27 red, green and pink smarties. I have twice as many red smarties as there are pink smarties but there are three times as many green smarties as there are red smarties. How many more green smarties are there than red smarties?
2. 1/6 of the fruit bowl has bananas in it, 1/3 of the fruit bowl has apples in it and 12 or 1/2 of the fruit bowl has pears in it. How many bananas and apples are in the fruit bowl?
a) 4 bananas and 6 apples
b) 6 bananas and 4 apples
c) 4 apples and 8 bananas
d) 4 bananas and 8 apples
3. What would be the next two numbers in the following sequence?
1600, 800, 400, ____ , ____
a) 500, 600
b) 200, 100
c) 200, 0
d) 0, -400
So, are you still with me?
How do you think you did?
Could help your own kid with their common core math homework? What if they brought these questions home tonight?
*Check out the answers below to these Common Core Math problems to find out now…
1. a = 12
2. d. = 4 bananas and 8 apples
3. b. = 200, 100
*A version of this article appears in the education section of The Huffington Post with permission.