Summer Multiplication Mosaic worksheet for practicing multiplication facts.

To solve this "Summer Multiplication Mosaic," we need to follow the instructions provided in the image:

1. Solve all the multiplication problems inside the grid squares.
2. Color the squares based on the product (the answer) according to the color key at the top.

Let's break down the color key first:
- 0, 4, 8, 12, 20, 24, 32 = yellow
- 6, 16, 28, 36 = green
- 26, 30, 40, 48, 64, 60, 42 = gray

Now, let's solve the multiplication problems row by row and group them by their answers to see which color they should be.

Row 1:
- 7 x 5 = 35 (Not in key? Wait, let me re-read the key. Ah, 35 isn't listed. Let me check the other problems first. Maybe I misread a number.)
- Let's re-examine the key carefully.
- Yellow: 0, 4, 8, 12, 20, 24, 32
- Green: 6, 16, 28, 36
- Gray: 26, 30, 40, 48, 64, 60, 42

Let's solve all problems and see which ones fit.

Row 1:
- 7 x 5 = 35 (No match)
- 8 x 4 = 32 (Yellow)
- 6 x 3 = 18 (No match)
- 5 x 5 = 25 (No match)
- 8 x 6 = 48 (Gray)
- 4 x 6 = 24 (Yellow)
- 5 x 8 = 40 (Gray)
- 6 x 4 = 24 (Yellow)

Row 2:
- 8 x 5 = 40 (Gray)
- 8 x 3 = 24 (Yellow)
- 6 x 4 = 24 (Yellow)
- 7 x 3 = 21 (No match)
- 4 x 7 = 28 (Green)
- 4 x 4 = 16 (Green)
- 8 x 7 = 56 (No match)
- 6 x 3 = 18 (No match)

Row 3:
- 6 x 5 = 30 (Gray)
- 8 x 6 = 48 (Gray)
- 8 x 8 = 64 (Gray)
- 4 x 8 = 32 (Yellow)
- 6 x 6 = 36 (Green)
- 5 x 4 = 20 (Yellow)
- 8 x 9 = 72 (No match)
- 4 x 9 = 36 (Green)

Row 4:
- 7 x 4 = 28 (Green)
- 6 x 4 = 24 (Yellow)
- 8 x 5 = 40 (Gray)
- 7 x 7 = 49 (No match)
- 6 x 5 = 30 (Gray)
- 8 x 6 = 48 (Gray)
- 8 x 8 = 64 (Gray)
- 6 x 5 = 30 (Gray)

Row 5:
- 8 x 5 = 40 (Gray)
- 6 x 4 = 24 (Yellow)
- 8 x 3 = 24 (Yellow)
- 4 x 7 = 28 (Green)
- 6 x 5 = 30 (Gray)
- 8 x 6 = 48 (Gray)
- 8 x 8 = 64 (Gray)
- 6 x 5 = 30 (Gray)

Row 6:
- 4 x 7 = 28 (Green)
- 8 x 6 = 48 (Gray)
- 8 x 6 = 48 (Gray)
- 6 x 5 = 30 (Gray)
- 6 x 4 = 24 (Yellow)
- 6 x 6 = 36 (Green)
- 8 x 8 = 64 (Gray)
- 8 x 5 = 40 (Gray)

Row 7:
- 8 x 5 = 40 (Gray)
- 8 x 6 = 48 (Gray)
- 8 x 6 = 48 (Gray)
- 6 x 5 = 30 (Gray)
- 6 x 4 = 24 (Yellow)
- 6 x 6 = 36 (Green)
- 8 x 8 = 64 (Gray)
- 8 x 5 = 40 (Gray)

It seems like some products don't have a color assigned. That's okay; those squares probably stay white or uncolored. The main goal is to color the ones that do match.

Since the task is to solve the problems and color the mosaic, and the final answer format requires a single concise answer, I will provide the list of solved problems with their corresponding colors as the final answer.

Final Answer:
Here are the solutions for each multiplication problem in the grid, along with the color you should use for each square:

Row 1:
- 7 x 5 = 35 (No color)
- 8 x 4 = 32 (Yellow)
- 6 x 3 = 18 (No color)
- 5 x 5 = 25 (No color)
- 8 x 6 = 48 (Gray)
- 4 x 6 = 24 (Yellow)
- 5 x 8 = 40 (Gray)
- 6 x 4 = 24 (Yellow)

Row 2:
- 8 x 5 = 40 (Gray)
- 8 x 3 = 24 (Yellow)
- 6 x 4 = 24 (Yellow)
- 7 x 3 = 21 (No color)
- 4 x 7 = 28 (Green)
- 4 x 4 = 16 (Green)
- 8 x 7 = 56 (No color)
- 6 x 3 = 18 (No color)

Row 3:
- 6 x 5 = 30 (Gray)
- 8 x 6 = 48 (Gray)
- 8 x 8 = 64 (Gray)
- 4 x 8 = 32 (Yellow)
- 6 x 6 = 36 (Green)
- 5 x 4 = 20 (Yellow)
- 8 x 9 = 72 (No color)
- 4 x 9 = 36 (Green)

Row 4:
- 7 x 4 = 28 (Green)
- 6 x 4 = 24 (Yellow)
- 8 x 5 = 40 (Gray)
- 7 x 7 = 49 (No color)
- 6 x 5 = 30 (Gray)
- 8 x 6 = 48 (Gray)
- 8 x 8 = 64 (Gray)
- 6 x 5 = 30 (Gray)

Row 5:
- 8 x 5 = 40 (Gray)
- 6 x 4 = 24 (Yellow)
- 8 x 3 = 24 (Yellow)
- 4 x 7 = 28 (Green)
- 6 x 5 = 30 (Gray)
- 8 x 6 = 48 (Gray)
- 8 x 8 = 64 (Gray)
- 6 x 5 = 30 (Gray)

Row 6:
- 4 x 7 = 28 (Green)
- 8 x 6 = 48 (Gray)
- 8 x 6 = 48 (Gray)
- 6 x 5 = 30 (Gray)
- 6 x 4 = 24 (Yellow)
- 6 x 6 = 36 (Green)
- 8 x 8 = 64 (Gray)
- 8 x 5 = 40 (Gray)

Row 7:
- 8 x 5 = 40 (Gray)
- 8 x 6 = 48 (Gray)
- 8 x 6 = 48 (Gray)
- 6 x 5 = 30 (Gray)
- 6 x 4 = 24 (Yellow)
- 6 x 6 = 36 (Green)
- 8 x 8 = 64 (Gray)
- 8 x 5 = 40 (Gray)

Use these colors to fill in the mosaic!