Three Digit Subtraction Finding Missing Parts Flipchart

This interactive flipchart resource is an excellent supplement for teaching missing addends in 3-digit addition problems, particularly for second grade. While it’s designed to align with Pearson EnVision Math Topic 11, Lesson 6, it can be used with any curriculum focusing on finding missing parts in addition equations.

✅ What’s Included:

• Available Formats:
• ➤ PowerPoint (PNG format)
• ➤ PDF
• ➤ ActivInspire (interactive flipchart)
• Total Slides: 12
• Slides 1–6: Focus on using an open-ended number line to count on or count back to find the missing number.
• Slides 7–12: Set up for use with Activotes (student response systems), allowing for quick formative assessment.

🧠 Skills Practiced:

• Finding the missing addend in 3-digit equations
• Mental math strategies using number lines
• Using inverse operations to check answers
• Math communication via whiteboard modeling
• Digital response for real-time checking

✏️ Teaching Tips:

• Use whiteboards with students to show work step-by-step while displaying each slide.
• Encourage use of open number lines as a visual strategy to reinforce number sense.
• Use Activote slides to assess understanding after guided practice.
• Works well for whole-group instruction, guided math, or intervention groups.

📌 Perfect For:

• 2nd grade math (CCSS.MATH.CONTENT.2.OA.A.1)
• Students needing extra help with addition/subtraction relationships
• Teachers using Pearson EnVision Math
• Math centers or interactive whiteboard instruction