QR Challenge: Decimal Word Problems

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

Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa ) onto their mobile devices
Bring these devices into the lesson.

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. Billie runs daily as part of an exercise plan. On Sunday she ran 8.3 miles, on Monday 5.1 miles, Tuesday 5.75 miles, Wednesday 5.6 miles, Thursday 4.25 miles and 6 miles on Saturday. How many miles did she run this week?	35 miles
2.
3. Tom had $84.50 and then spent $12.25 for a music CD, $17.85 for a gift, and $15.45 for gasoline. How much did he have left?	$38.95
4.
5. The employees in a firm earn $8.50 an hour for the first 40 hours per week, and 1.5 times the hourly rate for any hours worked over 40. How much does an employee who works 52 hours in one week earn?	$493.00
6.
7. The monthly rental for an apartment is $412.50. How much would the rent be for one year?	$4950.00
8.
9. If you have $325.58 in your checking account and then write a check for $166.73, what is your new balance?	$158.85
10.
11. John and Rosie own a home assessed at $98,000. If for every $1000 of assessed value they must pay $65.50 in taxes, how much is their tax bill?	$6419.00
12.
13. Jan bought 4 pounds of candy for $12.25. What was the average cost per pound to the nearest cent?	$3.06
14.
15. Mr. Adams drives a school bus twice a day for 5 days a week. Each trip averages 35.8 miles. In one week Mr. Adams drives how many miles?	358 miles
16.
17. A gallon of water weighs about 8.3 pounds. How many gallons of water are there in 614.2 pounds?	74 gallons
18.
19. If you are charged $22.92 for 16.5 gallons of gasoline, what is the price of gasoline per gallon? Round your answer to the nearest tenth of a cent.	$1.39
20.
21. In a 220 yard dash, Fred finished in 36.4 seconds and Rick finished in 33.9 seconds. How much longer did it take Fred?	2.5 seconds
22.
23. Find the total cost of this food purchase 4 lb steak for $3.89 per pound, 4 dozen eggs for $1.05 per dozen, 2 gallons of milk for $1.99 per gallon, and 3 loaves of bread for $1.79 per loaf?	$29.11
24.
25. You start a trip when your odometer reads 23,672 miles, and you have a full tank of gas. After driving a few hours, you fill up your tank. If you buy 16.5 gallons and your odometer reads 23,927, how many miles to the gallon are you getting, rounded to the nearest tenth of a gallon?	15.5mpg

Decimal Word Problems: QR Challenge

https://www.classtools.net/QR/decode.php?text=Billie_runs_daily_as_part_of_an_exercise_plan.__On_Sunday_she_ran_8.3_miles,_on_Monday_5.1_miles,_Tuesday_5.75_miles,_Wednesday_5.6_miles,_Thursday_4.25_miles_and_6_miles_on_Saturday.__How_many_miles_did_she_run_this_week?

Question 1 (of 25)