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QR Challenge: CMS Math 7 Integer Operations and Scientific Notation

Created using the ClassTools QR Treasure Hunt Generator

Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

3. Print out the QR codes.

4. Cut them out and place them around your class / school.


B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!


C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.


Questions / Answers (teacher reference)

Question

Answer

1. -4,762 - (-523) =-4,239
2. 1.2 x 〖10〗^(-5)=.000012
3. Put the following in order from least to greatest: .25, 17%, 2/917%, 2/9, .25
4. In which of the following will the answer ALWAYS be positive? A. multiplying same signs, B. adding different signs, C. dividing different signs, D. adding same signsA. multiplying same signs
5. One positive unit and one negative unit create a union called a what?zero pair
6. What is the first step you must take when adding integers with different signs?find the absolute value of each integer
7. John has $346 in his bank account. If he spends an average of $63 dollars per hour and shops for 6 hours, what will his account balance be when he is finished?$-32
8. A _________ exponent shows that the decimal point is shifted that number of places to the right. A. Positive B. Negative C. Neither D. OppositeA. Positive
9. 2.4327 x 10^4 is equal to A. 0.00024327 B. 0.24327 C. 24327 D. 2432700C. 24327
10. A _________ exponent shows that the decimal point is shifted that number of places to the left. A. Positive B. Negative C. Neither D. OppositeB. Negative
11. 7.8 x 10^-3 is equal to A. 78 B.0.0078 C. 78000 D. .078B. 0.0078
12. Is 31,234,160 divisible by 5?yes
13. Which fraction has the least value (is the smallest)? 3/5, 10/17, 15/22, 30/54, 60/12160/121
14. Which integer represents the following? A 7 gallon decrease in volume. A. -7 B. 7A. -7
15. Which fraction has the largest value? 63/124 or 24/5063/124

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q1/15:

-4,762 - (-523) =&choe=UTF-8

Question 1 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q2/15:

1.2 x 〖10〗^(-5)=&choe=UTF-8

Question 2 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q3/15:

Put the following in order from least to greatest: .25, 17%, 2/9&choe=UTF-8

Question 3 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q4/15:

In which of the following will the answer ALWAYS be positive? A. multiplying same signs, B. adding different signs, C. dividing different signs, D. adding same signs&choe=UTF-8

Question 4 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q5/15:

One positive unit and one negative unit create a union called a what?&choe=UTF-8

Question 5 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q6/15:

What is the first step you must take when adding integers with different signs?&choe=UTF-8

Question 6 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q7/15:

John has $346 in his bank account. If he spends an average of $63 dollars per hour and shops for 6 hours, what will his account balance be when he is finished?&choe=UTF-8

Question 7 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q8/15:

A _________ exponent shows that the decimal point is shifted that number of places to the right. A. Positive B. Negative C. Neither D. Opposite&choe=UTF-8

Question 8 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q9/15:

2.4327 x 10^4 is equal to A. 0.00024327 B. 0.24327 C. 24327 D. 2432700&choe=UTF-8

Question 9 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q10/15:

A _________ exponent shows that the decimal point is shifted that number of places to the left. A. Positive B. Negative C. Neither D. Opposite&choe=UTF-8

Question 10 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q11/15:

7.8 x 10^-3 is equal to A. 78 B.0.0078 C. 78000 D. .078&choe=UTF-8

Question 11 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q12/15:

Is 31,234,160 divisible by 5?&choe=UTF-8

Question 12 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q13/15:

Which fraction has the least value (is the smallest)? 3/5, 10/17, 15/22, 30/54, 60/121&choe=UTF-8

Question 13 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q14/15:

Which integer represents the following? A 7 gallon decrease in volume. A. -7 B. 7&choe=UTF-8

Question 14 (of 15)

 



CMS Math 7 Integer Operations and Scientific Notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=CMS Math 7 Integer Operations and Scientific Notation
Q15/15:

Which fraction has the largest value? 63/124 or 24/50&choe=UTF-8

Question 15 (of 15)