These numbers form an addition and subtraction fact family 8,3,11
To form a fact family using the numbers 8, 3, and 11, we can use addition and subtraction operations.
The addition fact family can be written as follows:
8 + 3 = 11
3 + 8 = 11
11 - 3 = 8
11 - 8 = 3
In this fact family, the numbers 8, 3, and 11 are related by addition and subtraction operations.
To form an addition and subtraction fact family with the numbers 8, 3, and 11, we need to find two addition equations and two subtraction equations using these numbers.
Addition equations:
1. 8 + 3 = 11
2. 3 + 8 = 11
Subtraction equations:
1. 11 - 8 = 3
2. 11 - 3 = 8
So, the addition and subtraction fact family with the numbers 8, 3, and 11 is:
8 + 3 = 11
3 + 8 = 11
11 - 8 = 3
11 - 3 = 8
To determine if the numbers 8, 3, and 11 form an addition and subtraction fact family, we need to check if we can use the given numbers to create addition and subtraction equations that are related.
In a fact family, there are three numbers: two addends and their sum. Let's consider the numbers 8, 3, and 11.
To check for addition equations:
1. Start with the two addends (in no particular order): 8 and 3.
2. Add the two numbers: 8 + 3 = 11.
Since adding 8 and 3 does equal 11, we have our first addition equation: 8 + 3 = 11.
To check for subtraction equations:
1. Begin with the two numbers from step 2 (the sum) and one of the original addends: 11, 8, and 3.
2. Subtract the smaller addend from the sum: 11 - 8 = 3.
3. Swap the positions of the subtracted and difference values to get another subtraction equation: 8 - 3 = 5.
Since subtracting 3 from 11 gives us 8, we have our second subtraction equation: 11 - 8 = 3.
Therefore, the numbers 8, 3, and 11 do form an addition and subtraction fact family:
Addition equation: 8 + 3 = 11
Subtraction equations: 11 - 8 = 3 and 8 - 3 = 5