How do you work out this question: ravi had 237 marbles more than elliott had. ravi gave elliott 165 marbles. who had more marbles in the end? how many more?

correct answers below:

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

step-by-step explanation: