Can you solve this?

Discussion in 'Mathematics' started by Shin0bi3Z, Jul 9, 2019.

?

What is 3 + 3 x 3 - 3 + 3 = ?

Poll closed Jul 16, 2019.

0 vote(s)
0.0%

93.1%

3.4%

3.4%
1. Shin0bi3ZNew commenter

Hello guys I have a math question that I just created, just pick the correct answer and let me know what you think about it. Enjoy!

2. ElfruneNew commenter

12. Is this some sort of trick?

3. HelenREMfanStar commenter

12. This is a version of dozens going around FB (though without including any brackets)

4. Rott WeilerStar commenterForum guide

12. Are you sure you just created it? A quick google shows the identical question appearing on any number of sites going back years. I see from your Profile that you a teacher in the USA. Is the arithmetical order of operations, BODMAS to me, taught in the US?

Lara mfl 05 and Stiltskin like this.
5. StiltskinStar commenter

I wonder if @Shin0bi3Z thinks the answer to
15-20+8
is 3 or -13?

6. Shin0bi3ZNew commenter

No trick this is a straight forward question that use PEMDAS.

7. Shin0bi3ZNew commenter

No I did not create this one. I solved it and thinking of preparing this question for some of my students. I wanted to see what do you think about it. Is it too easy for them or not?
Yes BODMAS is taught but it is called PEMDAS, where
P-parentheses
E-exponent and everything else is the same.

9. Shin0bi3ZNew commenter

There are problems that do repeat you are right about that. What I seek is how do we creatively take something that is old to students and take a new spin on it?

10. Shin0bi3ZNew commenter

You are right I will have to rewrite my question better, thanks for the feedback.

11. Rott WeilerStar commenterForum guide

Depends how old they are! I'm not a maths teacher though, so I'm not really qualified to answer that.

12. briceanusNew commenter

Is the first operation a plus or a divide ? My elderly eyes are failing me.
Bric

13. Shin0bi3ZNew commenter

It is a plus.

14. Shin0bi3ZNew commenter

Your thoughts are valid and important.

15. hs9981Established commenter

I clicked 'D' 1/4 chance of being correct....

yes

19. gainlyStar commenter

More interesting would be to insert plus, minus, multiply, divide and brackets to obtain different answers.

3 3 3 3 3 = 4
3 3 3 3 3 = 0.25
3 3 3 3 3 = 0
3 3 3 3 3 = 81
3 3 3 3 3 = 1
etc.

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20. gainlyStar commenter

Better still might be a competition to see who could find the greatest number of possible answers.

Lara mfl 05 and Shin0bi3Z like this.