Addition Facts to 10 worksheets with robot-themed activities for learning basic math.

Problem Description:

The task involves finding the missing addition fact that, when added to a given number, results in 10. Each robot has one arm with a number and an empty circle on the other arm. The goal is to fill in the missing number in the empty circle so that the sum of the two numbers equals 10.

Solution Approach:

1. Understand the Task: For each robot, we need to determine what number should be placed in the empty circle such that the sum of the number on the filled arm and the number in the empty circle equals 10.
2. Use Basic Addition Facts: Since the target sum is 10, we can use the formula:
\[
\text{Missing Number} = 10 - \text{Given Number}
\]
3. Apply the Formula to Each Robot:
- For each robot, identify the number on the filled arm.
- Subtract this number from 10 to find the missing number.
- Place the result in the empty circle.

Step-by-Step Solution:

#### First Row:
1. Robot 1: Given number = 5
\[
\text{Missing Number} = 10 - 5 = 5
\]
So, the missing number is 5.

2. Robot 2: Given number = 3
\[
\text{Missing Number} = 10 - 3 = 7
\]
So, the missing number is 7.

3. Robot 3: Given number = 8
\[
\text{Missing Number} = 10 - 8 = 2
\]
So, the missing number is 2.

#### Second Row:
4. Robot 4: Given number = 4
\[
\text{Missing Number} = 10 - 4 = 6
\]
So, the missing number is 6.

5. Robot 5: Given number = 7
\[
\text{Missing Number} = 10 - 7 = 3
\]
So, the missing number is 3.

6. Robot 6: Given number = 9
\[
\text{Missing Number} = 10 - 9 = 1
\]
So, the missing number is 1.

Final Answer:

The missing numbers for each robot are:
- First Row: 5, 7, 2
- Second Row: 6, 3, 1

\[
\boxed{5, 7, 2, 6, 3, 1}
\]