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QR Challenge: Dividing Decimals

Created using the ClassTools QR Treasure Hunt Generator

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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. 560/10=56.0
2. 430/10 to the 2 power4.30
3. Ella used 37.2 pounds of apples to make applesauce. She used one-tenth as many pounds of sugar as pounds of apples.3.72 pounds
4. 1.8 / 3 = 0.6
5. 3.78/3 = 1.26
6. In PE class, Carl runs a distance of 1.17 miles in 9 minutes. At that rate, how far does Carl run in one minute?0.13 miles
7. Marianne spends $9.45 on 5 greeting cards. Each card costs the same amount. What is the cost of one greeting card?$1.89
8. 2.52 / 9 = 0.28
9. A plant grew 23.8 inches over 8 weeks. Which is the best estimate of the average number of inches the plant grew each week? 3 inches
10. Estimate the quotient. 31.9 / 4 = 8
11. Divide. 4.35/5 0.87
12. The Bennett Bakery uses 440 pounds of sugar to make 1,000 cakes. Each cake contains the same amount of sugar. How many pounds of sugar are used in each cake?0.44 pounds
13. Amy pays $21.75 for 5 student tickets to the movie. What is the cost of each student's ticket? $4.35
14. John has a piece of wire that is 62.4 inches long. He cuts the wire into 3 equal pieces. Which is the best estimate of the length of each piece of wire? 20 inches
15. Toni uses 33.75 ounces of oats for 15 servings of oatmeal. If each serving contains the same amount of oats, how much oats are in each serving? 2.25 ounces
16. 63 / 100 = 0.63
17. On Saturday, 12 friends go ice skating. Altogether, they pay $83.40 for admission. They share the cost equally. How much does each person pay? $6.95
18. 56.7 / 10 to the second power = 0.567
19. 224 / 1,000 = 0.224
20. 527/100 = 5/27
21. 207.4 / 61 = 3.4
22. 6.1 / 8 = 0.8

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=560/10=

Question 1 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=430/10_to_the_2_power

Question 2 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Ella_used_37.2_pounds_of_apples_to_make_applesauce.__She_used_one-tenth_as_many_pounds_of_sugar_as_pounds_of_apples.

Question 3 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=1.8_/_3_=

Question 4 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=3.78/3_=

Question 5 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=In_PE_class,_Carl_runs_a_distance_of_1.17_miles_in_9_minutes.__At_that_rate,_how_far_does_Carl_run_in_one_minute?

Question 6 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Marianne_spends_$9.45_on_5_greeting_cards.__Each_card_costs_the_same_amount.__What_is_the_cost_of_one_greeting_card?

Question 7 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=2.52_/_9_=

Question 8 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_plant_grew_23.8_inches_over_8_weeks.__Which_is_the_best_estimate_of_the_average_number_of_inches_the_plant_grew_each_week?

Question 9 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Estimate_the_quotient.__31.9_/_4_=

Question 10 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Divide.__4.35/5

Question 11 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_Bennett_Bakery_uses_440_pounds_of_sugar_to_make_1,000_cakes.__Each_cake_contains_the_same_amount_of_sugar.__How_many_pounds_of_sugar_are_used_in_each_cake?

Question 12 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Amy_pays_$21.75_for_5_student_tickets_to_the_movie.__What_is_the_cost_of_each_student's_ticket?

Question 13 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=John_has_a_piece_of_wire_that_is_62.4_inches_long.__He_cuts_the_wire_into_3_equal_pieces.__Which_is_the_best_estimate_of_the_length_of_each_piece_of_wire?

Question 14 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Toni_uses_33.75_ounces_of_oats_for_15_servings_of_oatmeal.__If_each_serving_contains_the_same_amount_of_oats,_how_much_oats_are_in_each_serving?

Question 15 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=63_/_100_=

Question 16 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=On_Saturday,_12_friends_go_ice_skating.__Altogether,_they_pay_$83.40_for_admission.__They_share_the_cost_equally.__How_much_does_each_person_pay?

Question 17 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=56.7_/_10_to_the_second_power_=

Question 18 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=224_/_1,000_=

Question 19 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=527/100_=

Question 20 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=207.4_/_61_=

Question 21 (of 22)

 


Dividing Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=6.1_/_8_=

Question 22 (of 22)