Give your 3rd graders meaningful addition practice with these color by sum 3rd grade printable worksheets. Students solve each problem, match each sum to a color code, and reveal engaging mystery pictures that keep math time calm and focused.

Simply print the PDF pages for no-prep independent work, centers, small groups, or review. This 3rd grade color by sum math set targets key addition skills, including regrouping, mental math, and word problems, and can also be used as 3rd grade addition color by code or color by number addition review.

Key Features:

• Printable PDF format, ready to use with no prep
• 8.5×11 pages that fit easily in binders or folders
• Clear directions and student-friendly color keys on every page
• Perfect for math centers, early finishers, homework, or sub plans
• Mix of scaffolded practice, quick checks, and challenge problems
• Builds accuracy, confidence, and math fact fluency through coloring fun
  

Topics Included:

• 2-Digit Addition with Regrouping — Color by Sum Mystery Picture
• 3-Digit Addition with Regrouping — Color by Sum Quick Checks
• Add 3 Numbers to 1,000 — Color by Sum One-Page-A-Day
• Missing Addends within 100 — Color by Sum Exit Tickets
• Sums of Multiples of 10 — Color by Sum Math Art
• Sums of Multiples of 100 — Color by Sum Math Art
• Estimate Sums by Rounding — Color by Sum Practice Page
• Add on a Number Line — Color by Sum Task Page
• Add Using Expanded Form — Color by Sum Worksheet
• Column Addition to 1,000 — Color by Sum Mystery Picture
• One-Step Word Problem Sums — Color by Sum Worksheet
• Two-Step Word Problem Sums — Color by Sum Worksheet
• Add Hundreds, Tens, Ones — Color by Sum Sort & Color
• Make 100 with Addition — Color by Sum Puzzle Page
• Mental Math Sums within 100 — Color by Sum Speed Drill
• Add with Zeros in the Tens — Color by Sum Practice
• Add with Zeros in the Hundreds — Color by Sum Practice
• Carrying in Every Problem — Color by Sum Challenge
• Cross-Place-Value Sums — Color by Sum Grid Picture
• Balanced Equations (Sums) — Color by Sum Check
• Even and Odd Sums Review — Color by Sum Color-Key
  

Use these 3rd grade color by sum printable worksheets all year to spiral review, differentiate practice, and help your students look forward to math every day.

Common Core State Standards (CCSS):

• 3.NBT.A.1
• 3.NBT.A.2
• 3.OA.A.3
• 3.OA.D.8