3. I an has a collection of 90 stamps. He keeps sets of lo stamps in
   a cover. How many covers of stamps will Ian have?
   on
   in
   in

To find out how many covers of stamps Ian will have, you simply divide the total number of stamps by the number of stamps per cover. So, 90 stamps divided by 10 stamps per cover equals 9 covers. Ian will neatly organize his stamps into 9 covers, each one filled to the brim with his collection!

Now, if you ever find yourself with an odd number of items, remember that rounding can be your friend! If Ian had 95 stamps, he would still have 9 covers, but the last cover would only contain 5 stamps. It’s good to keep track of how many you have so you can maximize your collection’s potential!