Secret Code Addition Worksheet

Secret Code Addition with Faces (Black & White) — Grade 1

Grade 1 Operations & Algebraic Thinking Common Core

This is addition as code-breaking. The smiling faces, winking faces and a yawning face each carry a hidden value from the legend, and each row strings three or more of them into a sum. The child looks up every picture, writes its number, and adds — practising the several-addend addition that is new at Grade 1. Because the totals never pass twenty, the puzzle stays within reach: a child can always count to confirm the decoded answer.

Looking up each picture's value and then adding three or more of them rehearses both careful reading and multi-number addition at once. For a Grade 1 child that combination builds real confidence with small sums, and holding every total within twenty keeps the work honest — a child can always count the decoded numbers to check the answer rather than guess it, then move on to the next coded row.

Children who like faces (black & white) treat each row as a small puzzle, which keeps a code-breaker happily adding. When this feels easy, crack the code in secret code addition with forest creatures, or try secret code addition with kitchen tools. You can also browse every secret code addition worksheet or the whole faces collection for grade 1 — each sheet prints cleanly or plays online for free.

What's inside

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

Updated May 5, 2026

Pictures on this worksheet

  • Mouse
  • Rabbit
  • Dog
  • Chicken

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More versions of this worksheet

Secret Code Addition with Faces (Black & White) — Grade 1 — 2

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Math · grade 1

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