 # QR Challenge: Math review place value

## Print

### Create a New Quiz | Edit this quiz # 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

• Bring these devices into the lesson.

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 question 1 what is 10 more than 360? 370 question 2 what is 10 less than 920? 910 question 3 what is 100 more than 485? 585 question 4 what is 100 less than 718? 618 question 5 what is 156 in expanded form? 100+50+6 question 6 what is 542 in expanded form? 500+40+2 question 7 draw the number 631 using base ten blocks? 6 hundreds 3 tens 1 one question 8 draw or model the number 273 using base ten blocks? 2 hundreds 7 tens 3 ones question 9 which number is greater 345 or 229? How do you know? 345 because it has a greater value in the hundred's place question 10 which number is less 989 or 898? How do you know? 898 because the 8 in the hundred's place is less than the 9 in the hundred's place Question 11 skip count by tens from the number 450? 460,470,480,490,500 Question 12 skip count by twos from the number 240? 242,244,246,248,250 Question 13 skip count by fives from the number 630? 635,640,645,650,655,660 Question 14 make the number 35 in two different ways? three tens and five ones, two tens and fifteen ones Question 15 how many ways can you make the number 110 using base ten blocks? whatever number they come up with using hundreds tens and ones or just ones or just tens . ### Math review place value : QR Challenge Question 1 (of 15) ### Math review place value : QR Challenge Question 2 (of 15) ### Math review place value : QR Challenge Question 3 (of 15) ### Math review place value : QR Challenge Question 4 (of 15) ### Math review place value : QR Challenge Question 5 (of 15) ### Math review place value : QR Challenge Question 6 (of 15) ### Math review place value : QR Challenge Question 7 (of 15) ### Math review place value : QR Challenge Question 8 (of 15) ### Math review place value : QR Challenge Question 9 (of 15) ### Math review place value : QR Challenge Question 10 (of 15) ### Math review place value : QR Challenge Question 11 (of 15) ### Math review place value : QR Challenge Question 12 (of 15) ### Math review place value : QR Challenge Question 13 (of 15) ### Math review place value : QR Challenge Question 14 (of 15) ### Math review place value : QR Challenge Question 15 (of 15)