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Find the Path with the Right Sum · 1

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🔍 Find the Path with the Right Sum · 1

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Practice and check

Worked example

From the top-left to bottom-right, move only right or down. Circle a path totaling Σ, including both ends. Small numbers identify cells.

2 + 5 + 1 = 8; 1 → 3 → 4 → 1 → 3 → 4

  1. Read one problem and its conditions before starting. Work without a timer, and keep the key visible where the task requires it.
  2. Move only right or down. Count the start and end once each when checking the target sum.
  3. Σ = start + … + end · Step 1: 2×2 · Step 2: 3×3 · Step 3: 4×4
Check answers after trying

1: 1 → 3 → 4 2: 1 → 2 → 4 3: 1 → 4 → 7 → 8 → 9 4: 1 → 4 → 5 → 6 → 9 5: 1 → 2 → 6 → 10 → 11 → 12 → 16 6: 1 → 2 → 3 → 7 → 8 → 12 → 16

From the top-left to bottom-right, move only right or down. Circle a path totaling Σ, including both ends. Small numbers identify cells.

Solution diagram
Solution diagram

Why this answer

  1. 1. 2 + 5 + 1 = 8; 1 → 3 → 4 → 1 → 3 → 4
  2. 2. 3 + 6 + 9 = 18; 1 → 2 → 4 → 1 → 2 → 4
  3. 3. 4 + 8 + 3 + 3 + 7 = 25; 1 → 4 → 7 → 8 → 9 → 1 → 4 → 7 → 8 → 9
  4. 4. 1 + 3 + 3 + 2 + 2 = 11; 1 → 4 → 5 → 6 → 9 → 1 → 4 → 5 → 6 → 9
  5. 5. 2 + 9 + 8 + 5 + 7 + 1 + 5 = 37; 1 → 2 → 6 → 10 → 11 → 12 → 16 → 1 → 2 → 6 → 10 → 11 → 12 → 16
  6. 6. 3 + 4 + 1 + 7 + 1 + 9 + 3 = 28; 1 → 2 → 3 → 7 → 8 → 12 → 16 → 1 → 2 → 3 → 7 → 8 → 12 → 16
  7. If an answer differs, return to the first step that differs and explain the choice. Change the answer after checking rather than guessing a new rule.
  8. Try the next step when the current method feels manageable. You may repeat a problem, use a paper marker, or stop and return later.
  9. Original practice activities, not a standardized test or IQ score. Steps describe the task, not an age or ability grade.

Next worksheet: Find the Path with the Right Sum · 2

Shared practice guide

Tips for Parents

What is on the sheet From the top-left to bottom-right, move only right or down. Circle a path totaling Σ, including both ends. Small numbers identify cells. Σ = start + … + end · Step 1: 2×2 · Step 2: 3×3 · Step 3: 4×4 Original practice activities, not a standardized test or IQ score. Steps describe the task, not an age or ability grade. Try one example From the top-left to bottom-right, move only right or down. Circle a path totaling Σ, including both ends. Small numbers identify cells. 2 + 5 + 1 = 8; 1 → 3 → 4 → 1 → 3 → 4. Read one problem and its conditions before starting. Work without a timer, and keep the key visible where the task requires it. Check a difficulty Move only right or down. Count the start and end once each when checking the target sum. If an answer differs, return to the first step that differs and explain the choice. Change the answer after checking rather than guessing a new rule. Choose the next step Σ = start + … + end · Step 1: 2×2 · Step 2: 3×3 · Step 3: 4×4 Try the next step when the current method feels manageable. You may repeat a problem, use a paper marker, or stop and return later.

What This Worksheet Builds

From the top-left to bottom-right, move only right or down. Circle a path totaling Σ, including both ends. Small numbers identify cells. Move only right or down. Count the start and end once each when checking the target sum.

Next Step

Σ = start + … + end · Step 1: 2×2 · Step 2: 3×3 · Step 3: 4×4 Try the next step when the current method feels manageable. You may repeat a problem, use a paper marker, or stop and return later.