write the facts family numbers 15,5,and 3
Mathematics · Middle School · Mon Jan 18 2021
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A fact family is a group of math facts using the same numbers. In the case of the numbers 15, 5, and 3, we can write two addition facts and two subtraction facts to make a fact family.
1. Addition Fact 1: 5 + 3 = 8 2. Addition Fact 2: 3 + 5 = 8 These addition facts show that you can add 5 and 3 together in any order (commutative property of addition) to get the total of 8.
3. Subtraction Fact 1: 8 - 3 = 5 4. Subtraction Fact 2: 8 - 5 = 3 These subtraction facts show that you can subtract either of the two numbers from the total and get the remaining number.
These four facts are related to each other and show the relationship between addition and subtraction. They help students understand that numbers can be put together or taken apart in different ways.