Challenge 1: I'm thinking of a number
I am thinking of a number. If I add 3 to the number and multiply it by 5, I get a new number.
I can also get the same new number by adding 47 to my original number.
What number am I thinking of? Also, explain how you found it.
What students worked out11
Student 8
8
Karanteacher
Also, Can you explain how you got this?
Student 8
8+3=11
11*5=55
8+47
Student 8
8+3=11
11*5=55
8+47Student 8
1
Student 2
[x+3]*5=x+47
5x+15=x+47
4x=47-15
=32
x=8Student 3
choosing random number first and then going closer to the target answer number
Student 4
Sir, your number is 8.
(x*3)+5 = x+47
5x+15 = x+47
5x-x = 47-15
4x = 32
x = 8Student 1
You number is eight
I used guess and check Strategy starting with it went like this 10+3=13 13×5=65 10+47=57 it was close then i tried with 9 it went like this 9+3=12 12×5=60 47+9=56 it was also closer than last time so I knew i was getting closer then i tried 8 8+3=11 11×5=55 8+47=55 so that is how I got my answerStudent 5
8+3=11
11*5=55
8+47=55Student 6
8+3
=11
11×5
=55
8+47
=55