FUN SUMS

Each inhabitant of the bottom of the sea represents a number that is part of the sum of each row and of each column. The sum results are in the green squares. Work out what number represents each inhabitant.
You can play this game, without printing it on paper, if you know how to use the image editing drawing tools on your computer, phone or tablet. Ask an adult for help so you can play it as often as you want, and still saving paper and taking care of the environment.