The movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answer.Rewrite 23 + 42 = 65 using the Commutative Law of Addition.(23 + 42) = 6542 + 23 = 65042 = 23 + 6565 – 42 = 23

Commutative property of addition
Changing the order of addends does not change the sum.
For example:
[tex]4+2=2+4[/tex]For the problem
[tex]23+42=65[/tex]we have that the order of the addends does not alter the result:
[tex]42+23=65[/tex]