Answer:
Just practice ,know different ways of solving it ,gain experince ,be smart and skilled.
Step-by-step explanation:
if you want to prove anuthing then go with the concept accoeding to the nature of the problem and there are almost many ways to prove anything so don't waste your time on way get on to the other ways.
It may not get proved at first time so keep on doing questions and when you have gained experience you know every nature of problems and then you are skilled properly.
Answer:
tough question guy needed more points to answer
Step-by-step explanation:
<h2>MARK AS BRAINLIEST </h2>
318,224,480
5 is in the ones place so u round up
I think its the third one but im not 100% posative on that