๐ Topic Summary
Fact families are sets of related math facts using the same numbers. They show the relationship between addition and subtraction (or multiplication and division). For example, with the numbers 3, 4, and 7, you can make the addition facts $3 + 4 = 7$ and $4 + 3 = 7$, and the subtraction facts $7 - 3 = 4$ and $7 - 4 = 3$. These facts form a fact family! Using fact family practice sheets helps you understand these relationships and improve your math skills. Let's get started!
๐ง Part A: Vocabulary
- โ Term: Fact Family
- โ Term: Addend
- โ Term: Subtrahend
- ๐ฐ Term: Equation
- ๐ข Term: Number Sentence
- ๐ Definition: A mathematical statement showing that two expressions are equal.
- โ Definition: A set of related addition and subtraction (or multiplication and division) equations using the same numbers.
- โ Definition: A number that is added to another.
- โ Definition: The number being subtracted.
- ๐ข Definition: A statement that expresses a relationship between numbers using mathematical symbols.
Match each term with its correct definition. Write the number of the definition next to the term.
โ๏ธ Part B: Fill in the Blanks
A fact family is a group of related ______ facts or ______ facts that use the same three ______ . Understanding fact families can help you solve math problems more ______ and improve your number sense. A fact family usually has two addition equations and two ______ equations.
Word Bank: subtraction, numbers, addition, quickly
๐ค Part C: Critical Thinking
Imagine you have a fact family with the numbers 5, 8, and 13. Explain how knowing the addition fact $5 + 8 = 13$ can help you quickly figure out the answer to $13 - 5 = ?$