Mistake Detective by Lentz, Ana https://padlet.com/lentza6/9fjmhejqir58ct11 Find and correct mistakes in integer addition and subtraction problems en-us 2025-09-17 18:35:05 UTC 2025-09-18 01:03:48 UTC hello@padlet.com lentza6 https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590408032 Mistake Detective Activity
  1. Each section contains a different integer problem with an incorrect solution
  2. Examine the problem and solution carefully
  3. Create a post in the appropriate section where you:
    • Identify the error in the given solution
    • Show the correct solution with proper steps
    • Explain why the original approach was wrong
  4. Review your classmates’ posts and add comments with:
    • Additional insights about the mistake
    • Alternative solution methods
    • Helpful tips for avoiding similar errors

Remember: Be respectful in your comments and focus on the math concepts!

]]> 2025-09-17 18:35:18 UTC https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590408032 If this is addition you change nothing but have subtract because there is a positive with a negative, so you need to subtract lmc03000 https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590455901 2025-09-17 19:13:32 UTC https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590455901 For this problem you need to do keep change change so you need to keep the 6 but change the simple and change the 3 to a positive. lmc03000 https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590460125 2025-09-17 19:16:59 UTC https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590460125 Since there is a negative and a positive you will have to change the plus sign into a subtraction. The original mistake was that there was a plus sign not a minus. pav29000 https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590460492 2025-09-17 19:17:21 UTC https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590460492 for this problem there is a negative four so you need to subtract that by the nine which is positive so when you subtract that should be you answer. lmc03000 https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590462746 2025-09-17 19:19:34 UTC https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590462746 you need to do KCC keep change change so the 6 stays as it is but the minus turns into a plus and the -3 turns into positive three. The mistake here was they did not do KCC. pav29000 https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590463607 2025-09-17 19:20:17 UTC https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590463607 this one is very easy you do not need to use KCC you just need to do it as it is and that is it lmc03000 https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590464689 2025-09-17 19:21:14 UTC https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590464689 Again, you will need to do KCC keep change change so the -4 stays but the minus sign changes in to a plus and the 9 changes into a -9 and the mistake was that again they did not do KCC. pav29000 https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590466500 2025-09-17 19:22:54 UTC https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590466500 This one is super easy like 2nd grade math so 2-7 looks like you just do it but the greater number stays on top so since 7 is greater it goes on top and then it become 7-2 the mistake was the greater number was not on top. pav29000 https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590469465 2025-09-17 19:25:30 UTC https://padlet.com/lentza6/9fjmhejqir58ct11/wish/3590469465