First part of question says: Karen has m decks of cards.
If Karen has m deck of cards and each deck has 52 cards in it, the total number of cards that all that Karen will have will be 52 multiplied by the number of deck of cards Karen has:
Step-by-step explanation: if you simply multiply 300 by 3 you get 900 and dividing it you get 225 or you can simply divided 300 by 4 and get 75 before multiplying by 3 for 225.
