Educational math worksheet for practicing addition and subtraction fact families up to 100.

The task involves creating addition and subtraction fact families for given sets of numbers. A fact family is a group of related addition and subtraction facts that use the same three numbers. For example, if we have the numbers 20, 35, and 55, the fact family would include:

- Addition: \( 20 + 35 = 55 \) and \( 35 + 20 = 55 \)
- Subtraction: \( 55 - 20 = 35 \) and \( 55 - 35 = 20 \)

Step-by-Step Solution:

#### First Set of Numbers: 20, 35, 55
1. Addition Facts:
- \( 20 + 35 = 55 \)
- \( 35 + 20 = 55 \)

2. Subtraction Facts:
- \( 55 - 20 = 35 \)
- \( 55 - 35 = 20 \)

So, the complete fact family is:
- \( 20 + 35 = 55 \)
- \( 35 + 20 = 55 \)
- \( 55 - 20 = 35 \)
- \( 55 - 35 = 20 \)

#### Second Set of Numbers: 48, 23, 71
1. Addition Facts:
- \( 48 + 23 = 71 \)
- \( 23 + 48 = 71 \)

2. Subtraction Facts:
- \( 71 - 48 = 23 \)
- \( 71 - 23 = 48 \)

So, the complete fact family is:
- \( 48 + 23 = 71 \)
- \( 23 + 48 = 71 \)
- \( 71 - 48 = 23 \)
- \( 71 - 23 = 48 \)

#### Third Set of Numbers: 69, 22, 91
1. Addition Facts:
- \( 69 + 22 = 91 \)
- \( 22 + 69 = 91 \)

2. Subtraction Facts:
- \( 91 - 69 = 22 \)
- \( 91 - 22 = 69 \)

So, the complete fact family is:
- \( 69 + 22 = 91 \)
- \( 22 + 69 = 91 \)
- \( 91 - 69 = 22 \)
- \( 91 - 22 = 69 \)

#### Fourth Set of Numbers: 32, 60, 92
1. Addition Facts:
- \( 32 + 60 = 92 \)
- \( 60 + 32 = 92 \)

2. Subtraction Facts:
- \( 92 - 32 = 60 \)
- \( 92 - 60 = 32 \)

So, the complete fact family is:
- \( 32 + 60 = 92 \)
- \( 60 + 32 = 92 \)
- \( 92 - 32 = 60 \)
- \( 92 - 60 = 32 \)

#### Fifth Set of Numbers: 81, 19, 62
1. Addition Facts:
- \( 81 + 19 = 100 \)
- \( 19 + 81 = 100 \)

2. Subtraction Facts:
- \( 100 - 81 = 19 \)
- \( 100 - 19 = 81 \)

So, the complete fact family is:
- \( 81 + 19 = 100 \)
- \( 19 + 81 = 100 \)
- \( 100 - 81 = 19 \)
- \( 100 - 19 = 81 \)

#### Sixth Set of Numbers: 54, 23, 77
1. Addition Facts:
- \( 54 + 23 = 77 \)
- \( 23 + 54 = 77 \)

2. Subtraction Facts:
- \( 77 - 54 = 23 \)
- \( 77 - 23 = 54 \)

So, the complete fact family is:
- \( 54 + 23 = 77 \)
- \( 23 + 54 = 77 \)
- \( 77 - 54 = 23 \)
- \( 77 - 23 = 54 \)

Final Answer:

\[
\boxed{
\begin{array}{l}
\text{Fact Family for } 20, 35, 55: \\
20 + 35 = 55, \quad 35 + 20 = 55, \quad 55 - 20 = 35, \quad 55 - 35 = 20 \\
\text{Fact Family for } 48, 23, 71: \\
48 + 23 = 71, \quad 23 + 48 = 71, \quad 71 - 48 = 23, \quad 71 - 23 = 48 \\
\text{Fact Family for } 69, 22, 91: \\
69 + 22 = 91, \quad 22 + 69 = 91, \quad 91 - 69 = 22, \quad 91 - 22 = 69 \\
\text{Fact Family for } 32, 60, 92: \\
32 + 60 = 92, \quad 60 + 32 = 92, \quad 92 - 32 = 60, \quad 92 - 60 = 32 \\
\text{Fact Famil