Addition color by number worksheet - First grade - Treasure hunt 4 ... - Free Printable

Let's solve this "Color by Number" activity step by step.

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🔍 Objective:

You are given a grid with math problems (addition) in each section.
You need to:
1. Solve each addition problem.
2. Match the sum to a color using the key on the right.
3. Color each section according to the sum.

The instructions say:
> *"Add from 3 to 9"* — meaning all answers will be between 3 and 9, and you'll use those numbers to pick colors.

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🎨 Color Key (from the image):

| Number | Color |
|--------|---------|
| 3 | Green |
| 4 | Red |
| 5 | Blue |
| 6 | Orange |
| 7 | Purple |
| 8 | Yellow |
| 9 | Pink |

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✔ Step-by-step Solution:

We’ll go through some of the expressions and calculate their sums. Then, assign the correct color.

Let’s take a few examples:

#### Example 1: `3+6`
- 3 + 6 = 9 → Color: Pink

#### Example 2: `3+3`
- 3 + 3 = 6 → Color: Orange

#### Example 3: `5+4`
- 5 + 4 = 9 → Color: Pink

#### Example 4: `2+2+2+3`
- 2+2+2+3 = 9 → Pink

#### Example 5: `1+1+1`
- 1+1+1 = 3 → Green

#### Example 6: `4+5`
- 4 + 5 = 9 → Pink

#### Example 7: `2+4`
- 2 + 4 = 6 → Orange

#### Example 8: `1+2+4`
- 1+2+4 = 7 → Purple

#### Example 9: `3+2+4`
- 3+2+4 = 9 → Pink

#### Example 10: `5+3`
- 5 + 3 = 8 → Yellow

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Now let’s look at a few more tricky ones:

#### Example 11: `1+1+1+1`
- 1+1+1+1 = 4 → Red

#### Example 12: `4+3+1`
- 4+3+1 = 8 → Yellow

#### Example 13: `3+3+3`
- 3+3+3 = 9 → Pink

#### Example 14: `6+2+1`
- 6+2+1 = 9 → Pink

#### Example 15: `2+2+5`
- 2+2+5 = 9 → Pink

#### Example 16: `1+8`
- 1+8 = 9 → Pink

#### Example 17: `0+9`
- 0+9 = 9 → Pink

#### Example 18: `1+2+2`
- 1+2+2 = 5 → Blue

#### Example 19: `4+0`
- 4+0 = 4 → Red

#### Example 20: `9+0`
- 9+0 = 9 → Pink

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🧠 Pattern Observation:

Many sections add up to 9, especially with combinations like:
- 9+0
- 8+1
- 7+2
- 6+3
- 5+4
- 3+3+3
- 2+2+5
- etc.

Also, several small additions like:
- 1+1+1 = 3 → Green
- 1+2+1 = 4 → Red
- 2+3 = 5 → Blue

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✔ Final Instructions for Coloring:

To complete the puzzle:

1. Solve every addition problem in each shape.
2. Use the number result to find the matching color from the key.
3. Color each region accordingly.

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💡 Tips:

- Start with easy ones like `3+3`, `1+1+1`, or `9+0`.
- Watch out for multiple addends (like `2+2+2+3`).
- Remember: `0` doesn’t change the sum.

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🎯 Summary:

This is an educational activity that combines basic arithmetic with coloring to reinforce addition skills.

Once all sums are calculated and colored correctly, the final image will reveal a hidden picture (likely a fun design or character), depending on how the shapes connect.

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Would you like me to generate a completed version of this coloring page with colors assigned? Or perhaps provide a printable answer key? Let me know!