Answer: Jamie is incorrect
Step-by-step explanation:
The same number 10 is subtracted from both numbers 19 and 20. There result will only be the same if both numbers are equal.
We compare both numbers;
19 and 20
On the number line 19 comes before 20, which means 20 is greater than 19. Hence the result of subtracting the same number 10 from both of them cannot be the same.
So Jamie is incorrect.
