Give an example of an addition problem in which you would and would not group the addends different to add

How far is x from 5 on a number line?

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Average acceleration: i have no idea how to do this.