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11 Free Ocean Themed Math Activities for Preschoolers | Free Worksheets

These ocean themed math activities for preschoolers with worksheets will help to visualize and understand number systems. Preschoolers will learn basic math operation methods and can improve their basic math skills with our free printable ocean themed math activities for preschoolers with worksheets.

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11 Exciting Worksheets to Practice Ocean Themed Math Activities for Preschoolers

Please download the following ocean themed math activities for preschoolers and practice problems on the pages.

Ocean Themed Math Activities for Preschoolers

Counting Number

Worksheet #1

Ocean Race

Worksheet #2


Worksheet #3

Find Missing Numbers

Worksheet #4

Color by Number

Worksheet #5

Fish Releasing Game

Worksheet #6

Count Pirates

Worksheet #7

Octopus’s Lost Arm

Worksheet #8

Patterning Math Activity

Worksheet #9

Cut and Paste Game

Worksheet #10

Graphing Activity

Worksheet #11

Ocean Counting Number Game 

This method based on ocean counting.

  • Draw baby sharks.
  • Ask them to count.
  • Now tell me how many sharks are in the photo.

Count the sharks by number

Nemo and Friends Are Joining the Ocean Race Game

This method sets up a racing game board with a start line and a finish line, which is the hook, and 10 spaces. Draw Nemo and his friends named Marlin, Grill, Dory, and Squirt. After completing the drawing, give them five dice and tell them to roll.

Whoever comes first near the hook will be the winner! For example, if Nemo rolls the dice and it comes out 3, Nemo will go forward 3 spaces, and if the dice come out with a lesser number than earlier, they will go backward.

Nemo and Friends Are Joining the Ocean Race Game!

Starfish Addition Fun for Ocean Themed Math Activities

This method has a small math problem with the addition of starfish. Divide the worksheet into two parts.

  • First, count the red starfish of one part and tell me how many starfish are there. 
  • There are 5 red starfish.
  • Now, count the blue starfish of another part and tell me how many starfish are there. 
  • There are 7 blue starfish.
  • Then, add up the starfish and tell me how many starfish he has now.
  • He now has 12 starfish.

Counting starfish by addition

Ocean Themed Missing Numbers Finding Game

Choose a number range. For example, you can choose numbers from 11 to 20.

  • Write the sequence of numbers on a worksheet, leaving one number blank.
  • Guess the missing numbers.
  • For example 11, 12, _, 14. They will guess and write the correct answer. The answer is 13.

Finding missing numbers

Color By Number the Ocean Animals

This method contains coloring this crab. 

  • First look at the drawing of the crab. There are some numbers written all over it.
  • For each number, there is a color code mentioned in the paper.
  • Here comes the most fun part! Color the crab according to the color code. For example, I want to color the eyes of the crab. To do that, I need to know the number which is ‘1”. Now I will look for the color for number 1. And it is white as given in the paper. So I will give the eyes a fine white shade.

Color crab by number

Count the Fish and Release Them for Ocean Themed Math Activities

Draw some fish.

Color the fish red, yellow, green, blue, orange, etc.

Then, give them a worksheet where the ocean is drawn.

After that, choose a task card where the number of fish is written and put them in the ocean.

For example, if they choose 5 fish to put in the ocean, they will take 5 fish and put them in the ocean to live.

Putting fish in the ocean

Ocean Themed Math Activities for Counting Pirates in Board Game

First, make a worksheet where boxes will contain pirate ships, maps, birds, hats, flags, etc. Some boxes will be crossed.

They also need dice to roll.  When the game starts, the students roll the dice serially.

If the dice roll on a cross, they will get nothing and can’t come forward from the previous place, and if it rolls on treasure, they will get a point and come forward.

Whoever arrives at the endpoint first will be the winner. For example, when a student rolls the dice on the ship, she comes forward and gets a point.

But if the dice roll on the cross, she can’t move from the previous place and will get nothing.

Count Pirates in Board Game

Finding the Octopus’s Lost Arms for Ocean Themed Math Activities

Octopuses are famous for their eight arms. This method provides subtraction problems.

For example, if I draw an octopus with five arms and tell my child that an octopus has eight legs but I only draw three of them, then how many of the legs are lost? After that, they subtract 8 from 3 and say that the octopus lost five of its arms.

Finding the lost arm of octopus by subtraction

Ocean Themed Patterning Math Activity

Set up a challenging pattern.  For example, I bought many stickers of octopuses, starfish, sea snails, clownfish, etc. Then, I make a pattern of ABA, where the octopus and the sea snail are A, and the clownfish and the starfish are B.

Now, I stick the octopus, clownfish, and octopus in the first row, and then the sea snail, starfish, and sea snail in the second row. Now the children will make a pattern, which is ABB.

Ocean Themed Patterning Math Activity

Ocean Number Game

Take a worksheet and divide the sheet into two parts.

  • Draw some ocean fish on one part.
  • Write some random numbers on the animals and also on the other parts. Here we used 1-20 numbers.
  • Ask the students to cut the numbers and stick them beside the right pictures.
  • For example, if they chose a fish with the number 12, they will cut the number 12 and stick it beside the right photo.

Ocean Number Game

Ocean Themed Graphing Activity

Need a cube dice on which the photos of a starfish, an octopus, a sea snail, a shark, a clownfish, and a crab are drawn. Also provide a worksheet where students can record the numbers.  There are 15 columns, and each time students roll the dice, they record their rolls.

When a student rolls the dice and the octopus appears five times, she might mark column 5 on the worksheet. 

Ocean Themed Graphing Activity

Download Free Printable Worksheet

Download the following combined PDF and enjoy your practice session.

So today, we’ve discussed ocean themed math activities for preschoolers with worksheets using the concepts of counting, addition, subtraction, finding missing number, etc. Download our free worksheets, and after Practicing these worksheets, students will surely improve their mathematical skills and have a better understanding of addition, subtraction, counting, etc.

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