Addition Worksheet

Addition with Ocean Life — Kindergarten

Kindergarten Operations & Algebraic Thinking Common Core

Two little groups of fish, crabs and an octopus sit on each row of this kindergarten sheet, joined by a plus sign, with the total left blank. The task is simple and self-checking: count one group, count the other, and write how many sea creatures there are together. Five- and six-year-olds can do every line by pointing and counting, which means the sheet works for a whole class at once — nobody is stuck waiting until they can read an equation first.

Counting two groups and then saying how many there are in all is the first real step into addition. Long before a symbol means anything, a child who combines one pile of sea creatures with another and recounts the whole set is already adding — and keeping totals within ten means every answer can be checked by counting rather than guessed.

Children who enjoy ocean life take to this one quickly, and it works just as well as a quiet morning task or a count-along on the board. When the set feels easy, count a different collection in addition with pets, or try addition with things that fly. You can also browse every addition worksheet or the whole sea creatures collection for kindergarten — each sheet prints cleanly in black and white or plays online for free.

What's inside

  • 6 exercises
  • 6 pictures
  • Answer key included
  • Print as PDF or play online — free, no sign-up

Updated May 4, 2026

Pictures on this worksheet

  • Tuna
  • Sea Lion
  • Jellyfish
  • Scallop
  • Clownfish
  • Octopus

Sample problems from this worksheet

  • 2 + 5 = ?
  • 4 + 5 = ?
  • 1 + 2 = ?
  • 5 + 5 = ?
  • 5 + 2 = ?
  • 3 + 2 = ?

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Math · kindergarten

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