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QR Challenge: Tenths & Hundredths

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. What does 2/10 look like as a decimal?0.2
2. Write 1 5/100 as a decimal.1.05
3. Express 32.4 in expanded form.30+2+0.4
4. Write 7.9 as a mixed number.7 9/10
5. In 920.4, what place value is the 2 in?tens
6. What is 405/10 as a decimal?40.5
7. In 9.17, the digit 7 is in the _______ place?hundredths
8. Write 83/100 as a decimal.0.83
9. Express 407.4 in expanded form.400+7+0.4
10. What is the number? 9 tens 6 ones and 2 tenths.96.2
11. 63 dollars = $____________$63.00
12. How many digits are to the right of the decimal when working with tenths?1
13. Choose a decimal and write it three different ways.varies
14. Write 72.3 as a mixed number.72 3/10
15. In 21.69, what place is the 6 in?tenths
16. How many digits are to the right of the decimal when working with hundredths?2
17. 6 dollars and 42 cents = $_________$6.42
18. FIl in the blanks. 92.34 = 9 tens + 2 ____ + 3 tenths + ______ hundredths.ones/4
19. Express 2.81 in expanded form.2+0.8+0.01
20. 26 2/100 as a decimal = ____________26.02
21. Write this number in standard form: six hundred forty three and nine tenths.643.9

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q1/21:

What does 2/10 look like as a decimal?&choe=UTF-8

Question 1 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q2/21:

Write 1 5/100 as a decimal.&choe=UTF-8

Question 2 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q3/21:

Express 32.4 in expanded form.&choe=UTF-8

Question 3 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q4/21:

Write 7.9 as a mixed number.&choe=UTF-8

Question 4 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q5/21:

In 920.4, what place value is the 2 in?&choe=UTF-8

Question 5 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q6/21:

What is 405/10 as a decimal?&choe=UTF-8

Question 6 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q7/21:

In 9.17, the digit 7 is in the _______ place?&choe=UTF-8

Question 7 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q8/21:

Write 83/100 as a decimal.&choe=UTF-8

Question 8 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q9/21:

Express 407.4 in expanded form.&choe=UTF-8

Question 9 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q10/21:

What is the number? 9 tens 6 ones and 2 tenths.&choe=UTF-8

Question 10 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q11/21:

63 dollars = $____________&choe=UTF-8

Question 11 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q12/21:

How many digits are to the right of the decimal when working with tenths?&choe=UTF-8

Question 12 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q13/21:

Choose a decimal and write it three different ways.&choe=UTF-8

Question 13 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q14/21:

Write 72.3 as a mixed number.&choe=UTF-8

Question 14 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q15/21:

In 21.69, what place is the 6 in?&choe=UTF-8

Question 15 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q16/21:

How many digits are to the right of the decimal when working with hundredths?&choe=UTF-8

Question 16 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q17/21:

6 dollars and 42 cents = $_________&choe=UTF-8

Question 17 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q18/21:

FIl in the blanks. 92.34 = 9 tens + 2 ____ + 3 tenths + ______ hundredths.&choe=UTF-8

Question 18 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q19/21:

Express 2.81 in expanded form.&choe=UTF-8

Question 19 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q20/21:

26 2/100 as a decimal = ____________&choe=UTF-8

Question 20 (of 21)

 



Tenths & Hundredths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Tenths & Hundredths
Q21/21:

Write this number in standard form: six hundred forty three and nine tenths.&choe=UTF-8

Question 21 (of 21)