Domino Math Worksheets Composing & Decomposing Numbers ... - Free Printable

Problem Description:

The task involves completing a domino-like worksheet where each domino has two sections. The left section shows a number and the corresponding number of dots, while the right section shows a number but is missing the corresponding dots. The goal is to determine how many more dots are needed in the right section to match the total number of dots shown on the left side.

Solution Approach:

1. Understand the Structure: Each domino has two sections. The left section shows a number and its corresponding dots. The right section shows a number but lacks the corresponding dots.
2. Calculate Missing Dots: For each domino, subtract the number of dots already present in the right section from the total number of dots required (which is the number shown in the left section).
3. Draw the Missing Dots: Add the calculated number of dots to the right section to complete the domino.

Step-by-Step Solution:

#### Domino 1:
- Left section: `6` (with 6 dots)
- Right section: `2` (with 2 dots)
- Missing dots: \( 6 - 2 = 4 \)
- Draw 4 more dots in the right section.

#### Domino 2:
- Left section: `5` (with 5 dots)
- Right section: `4` (with 4 dots)
- Missing dots: \( 5 - 4 = 1 \)
- Draw 1 more dot in the right section.

#### Domino 3:
- Left section: `8` (with 8 dots)
- Right section: `3` (with 3 dots)
- Missing dots: \( 8 - 3 = 5 \)
- Draw 5 more dots in the right section.

#### Domino 4:
- Left section: `7` (with 7 dots)
- Right section: `9` (with 9 dots)
- Missing dots: \( 7 - 9 = -2 \) (This is not possible since you cannot have negative dots. It seems there might be an error in the problem setup for this domino. Assuming it should be corrected to a valid scenario, we'll skip this one or assume it's a typo.)

#### Domino 5:
- Left section: `7` (with 7 dots)
- Right section: `7` (with 7 dots)
- Missing dots: \( 7 - 7 = 0 \)
- No additional dots are needed.

Final Answer:

- Domino 1: Draw 4 more dots.
- Domino 2: Draw 1 more dot.
- Domino 3: Draw 5 more dots.
- Domino 4: Skip or correct the problem (invalid setup).
- Domino 5: No additional dots needed.

\[
\boxed{4, 1, 5, \text{Skip}, 0}
\]