If you want a challenge, maybe your grown up could change 2 things, or even 3 things!
As you correct the mistakes, please talk about what was wrong and why.
Here are some examples of things you might discuss:
1 2 6 3 4 5 7 8 9 10
-"I can see that 6 is not in the right place because 6 come after 5, not before it. 6 does not come before 3. 6 is one more than 5, 7 is not one more than 6."
1 2 3 4 5 6 7 9 8 10
-"I can see that 9 is not in the correct place on the number line because one less than 8 is 7, not 9. 9 is a bigger number than 8 so that means that 9 should come after 8 on the number line."
Please post some pictures of your number line and some of your explanations on Tapestry.