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Advanced Addition Mystery Puzzle Worksheet with Color Key

A grid-based mystery puzzle worksheet titled "Advanced Addition" with a color key for numbers 0-20, where each number corresponds to a color (Red, Blue, Green, Yellow, Gray).

A grid-based mystery puzzle worksheet titled "Advanced Addition" with a color key for numbers 0-20, where each number corresponds to a color (Red, Blue, Green, Yellow, Gray).

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ID: #755171
Show Answer Key & Explanations Step-by-step solution for: Mystery Addition - Coloring Squared
I need to solve this mystery puzzle. Let me work through it step by step.

This is an addition grid where I need to:
1. Add the row number and column number for each cell
2. Color each cell based on the sum using the key provided

The key shows:
- 0 = Red
- 1-5 = Blue
- 6-10 = Green
- 11-15 = Yellow
- 16-20 = Gray

Let me calculate some examples to verify my understanding:
- Row 0, Column 0: 0 + 0 = 0 → Red
- Row 1, Column 0: 1 + 0 = 1 → Blue
- Row 5, Column 0: 5 + 0 = 5 → Blue
- Row 6, Column 0: 6 + 0 = 6 → Green
- Row 10, Column 0: 10 + 0 = 10 → Green
- Row 11, Column 0: 11 + 0 = 11 → Yellow
- Row 15, Column 0: 15 + 0 = 15 → Yellow
- Row 16, Column 0: 16 + 0 = 16 → Gray
- Row 20, Column 0: 20 + 0 = 20 → Gray

For diagonal patterns:
- Row 0, Column 1: 0 + 1 = 1 → Blue
- Row 1, Column 1: 1 + 1 = 2 → Blue
- Row 5, Column 5: 5 + 5 = 10 → Green
- Row 10, Column 10: 10 + 10 = 20 → Gray

The pattern creates diagonal bands of color because cells with the same sum (row + column) have the same color. This creates diagonal stripes from top-left to bottom-right.

Final Answer:
To complete this mystery puzzle:
1. For each cell, add the row number + column number
2. Color according to the key:
- Sum of 0: Red
- Sums 1-5: Blue
- Sums 6-10: Green
- Sums 11-15: Yellow
- Sums 16-20: Gray

The completed puzzle will show diagonal colored bands creating a pattern across the grid.
Parent Tip: Review the logic above to help your child master the concept of mystery picture worksheet.
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