Give your students meaningful practice they’ll actually enjoy. The riddle pages engage learners with solve-and-decode puzzles (the correct math answers reveal a silly punchline), while the color-by-number pages provide self-checking practice that uncovers a completed picture as they work. Together, these nine activities spiral the four essential Grade 3 skills: rounding to 10, rounding to 100, addition within 1,000, and subtraction within 1,000 (mixed regrouping appropriate for third grade).

Perfect for morning work, early finishers, centers, small-group rotations, homework, or sub plans. Clean blackline printing keeps copies crisp and copier-friendly.

What’s Included

5 Riddle Worksheets (mix of rounding to 10/100, addition, subtraction)

4 Color-by-Number Worksheets (same four skill areas)

Complete Answer Keys for every page

Total: 9 printable worksheets + 9 answer keys

Skills & Standards

3.NBT.A.1 – Round whole numbers to the nearest 10 and 100

3.NBT.A.2 – Fluently add and subtract within 1,000 using place-value strategies and properties of operations

Fact fluency, place-value reasoning, and error checking

Teacher Tips

Model one problem and how to check with the riddle punchline or color chart.

Use as a month-long spiral: assign one page per week, or place by skill in your math centers.

Prep & Printing

Print in black & white; just add crayons/colored pencils.

No cutting or gluing required.

Post or keep the answer keys for quick checks.