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QR Challenge: Addition and Subtraction Word Problems!

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. Sam has 10 bows. Auntie FeFe gave her 4 more bows. How many bows does Sam have now?14 total bows
2. Lexie read 4 pages in her book. Then she ate a snack. Afterwards she read 8 more pages. How many pages did Lexie read in all?12 total pages
3. Sara bought 3 new dresses. Then her dog peed on one of her dresses. How many clean dresses does Sara have now?2 new dresses
4. Alyssa baked 15 dog bones. Her dog ate 3 of the dog bones. How many dog bones does Alyssa have left?12 dog bones
5. Stevie had $20.00. Then she went to Starbucks and spent $4.00. How much money does Stevie have left?$16.00
6. Auntie FeFe scored 2 touchdowns in during the first half of the football game. Then she scored 3 more touchdowns during the second half the game. How many touchdowns did Auntie FeFe score in all?5 total touchdowns
7. Jenna washed 17 dishes. Then she accidentally broke 9 of them. How many dishes are not broken?8 dishes
8. Courtney walked 3 miles and ran 4 miles. How much distance did Courtney travel in all?7 miles total
9. Sophie bought 18 pairs of new shoes. Then she lost 4 pairs. How many pairs of new shoes does Sophie have now?14 pairs of new shoes
10. Christopher had 7 hairs on his chin. He shaved 2 of them off. How many hairs on his chin does he have left?5 hairs left

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q1/10:

Sam has 10 bows. Auntie FeFe gave her 4 more bows. How many bows does Sam have now?&choe=UTF-8

Question 1 (of 10)

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q2/10:

Lexie read 4 pages in her book. Then she ate a snack. Afterwards she read 8 more pages. How many pages did Lexie read in all?&choe=UTF-8

Question 2 (of 10)

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q3/10:

Sara bought 3 new dresses. Then her dog peed on one of her dresses. How many clean dresses does Sara have now?&choe=UTF-8

Question 3 (of 10)

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q4/10:

Alyssa baked 15 dog bones. Her dog ate 3 of the dog bones. How many dog bones does Alyssa have left?&choe=UTF-8

Question 4 (of 10)

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q5/10:

Stevie had $20.00. Then she went to Starbucks and spent $4.00. How much money does Stevie have left?&choe=UTF-8

Question 5 (of 10)

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q6/10:

Auntie FeFe scored 2 touchdowns in during the first half of the football game. Then she scored 3 more touchdowns during the second half the game. How many touchdowns did Auntie FeFe score in all?&choe=UTF-8

Question 6 (of 10)

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q7/10:

Jenna washed 17 dishes. Then she accidentally broke 9 of them. How many dishes are not broken?&choe=UTF-8

Question 7 (of 10)

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q8/10:

Courtney walked 3 miles and ran 4 miles. How much distance did Courtney travel in all?&choe=UTF-8

Question 8 (of 10)

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q9/10:

Sophie bought 18 pairs of new shoes. Then she lost 4 pairs. How many pairs of new shoes does Sophie have now?&choe=UTF-8

Question 9 (of 10)

 



Addition and Subtraction Word Problems!: QR Challenge

https://www.classtools.net/QR/decode.php?text=Addition and Subtraction Word Problems!
Q10/10:

Christopher had 7 hairs on his chin. He shaved 2 of them off. How many hairs on his chin does he have left?&choe=UTF-8

Question 10 (of 10)