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Unit__1____ Lesson __3__ Title __Number Operations____ 1. A letter in an equation that represents an unknown number is called a ___________________. 2. An algebraic expression does not have an ______________________ as part of the expression. 3. An algebraic equation includes an ____________________________ as part of the equation. 4. There are four basic number operations, and they are: ________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________. 5. The answer to an addition operation is known as the __________________________________. 6. The answer to a subtraction problem is known as the __________________________________. 7. 4 + 3 is an example of which basic number operation? _________________________________. 8. 11 – 7 is an example of which basic number operation? ________________________________. 9. Addition and subtraction are what kind of operations? _________________________________. 10. “When you add two real numbers, the answer is always a real number.” What is the name of this property? ________________________________________________________________________. 11. 4 x 3, 4 ∙ 3, and (4)(3) are all examples of which basic number operation? _________________________________________. 12. The answer to a multiplication problem is known as a __________________________________. 13. 4 ÷ 2 and 4/2 are examples of which basic number operation? __________________________. 14. The answer to a division problem is called the _______________________________________. 15. Division and multiplication are ___________________________________________ operations. 16. “Whenever we multiply two real numbers, the product is always a real number.” What is the name of this property? _____________________________________________________________. 17. What does it mean to take a number taken to a power? ________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________. 18. Give an example of a number taken to a power. ______________________________________. 19. What is the answer to the example in # 18? __________________________________________. 20. What is the name of the “power number” ___________________________________________. 21. What is the exponent in the example in # 18? ________________________________________. 22. What is the name of the number that is taken to the power? ____________________________. 23. What is the base number in the example in # 18? _____________________________________. 24. What are the steps in the order of operations? 1._______________________________________. 2. ______________________________________ 3.______________________________________. 4. ______________________________________ 5. ______________________________________. 6. _______________________________________. 25. What are the different types of grouping symbols? List them and draw examples. _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________. 26. What is the name of the rule that states that you read an equation from left to right? ___________________________________________________________________ __________________________________________________________________.