These ocean subtraction puzzles are the next best thing to spending the day at the beach! Students will love the challenge of matching up the problems and solutions and you’ll love the quick and easy prep.

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To prep, I printed the Beach Time Subtraction Puzzles (below) on cardstock and laminated them for extra durability so that they could be used year after year.

Once I finished laminating them, I cut them out. I found it easiest toÂ use a paper trimmer to cut around the outside border of theÂ puzzles first.

Then, I went back and cut out the individual pieces of each puzzle with scissors.

## Beach Time Subtraction Puzzles

The setÂ contains 20Â different puzzles, covering numbers 1 to 20. Each puzzle contains fourÂ pieces: one piece identifies the numberÂ and the others have subtraction problems that equal that number.

Students start the activity by placing all of the puzzle pieces on a table or the floor.

They choose a beach pail number puzzle piece first. I always encourage my students to say the number out loud.

If your students are younger, you can have them trace the number with their finger.

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This student chose the numberÂ eight.

Students then sorted through all of the pieces, trying to find the subtraction problems that equaled eight.

They continued searching for matches until there wereÂ three shovels with the pail.

When they wereÂ done, they pushed the puzzle to the side and continued until all 20 puzzle pieces hadÂ beenÂ paired.

## Differentiating

If your students only know the numbers 1 to 10, then only include those puzzles.

If you only want to focus on numbers 15 to 20, provide your students with those puzzles.

If having three subtraction problems for every number is overwhelming for children, you can easily give them two piece puzzles to complete. As they master those, then you can slowly add in more.

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1. j says:

Beach Subtraction Way cool! allmy kids will love

2. Rebecca says: