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Math Quiz Show

Math Quiz Show. Question and Answer Topic 8 Numerical Expressions, Patterns, and Relationships Mrs. Flynn. Topic 8 Math Review. The following slides review the key concepts in Topic 8. 325 + N = 26 is an algebraic equation.

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Math Quiz Show

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  1. Math Quiz Show Question and Answer Topic 8 Numerical Expressions, Patterns, and Relationships Mrs. Flynn

  2. Topic 8 Math Review • The following slides review the key concepts in Topic 8.

  3. 325 + N = 26 is an algebraic equation. 325 + N= 26 is an algebraicequation because it has an equal sign and a variable.

  4. What is 9p – 44 considered? Algebraic Expression 9p– 44 is an algebraic expression because it is a mathematical phrase that has at least one variable and one operation. An expression doesn’t have an equal sign.

  5. I am a quantity (number) that can change (or vary) and I am often represented as a letter of the alphabet. What am I? Variable 9x + 5 The variable is _____. 7b – 42 The variable is _____. r ÷ 8 The variable is _____. x b r

  6. Rachel sold 14 cupcakes during the first hour of the bake sale and 9 cupcakes the second hour. What expression shows the number of cupcakes she has left? C – (14 – 9) C – (14 x 1) – (9 x 2) 14 + 9 – C C -14 + 9 C – 14 – 9

  7. Match the word phrase to the algebraic expression: 15 divided by a number r 7 times the difference of y and 4 5 more than the product of 9 and x The difference between a number b and 25 4 less than 5 times a number g 5g - 4 9x + 5 15 ÷ r 7 (y – 4) b - 25

  8. How do you evaluate a numerical expression with more than one operation? Order of Operations The order of operations states that operations in parentheses are solved first, then exponents, followed by multiplication and division from left to right, Finally, addition and subtraction are completed from left to right. PleaseexcusemydearAuntSally.

  9. Evaluate the numerical expressions using Order of Operations: 6 + 27 ÷ 3 6 (14 – 7) 8 x 6 – 4 x 3 8 x (3 + 2) - 6 (3 + 2²) x (3 + 5) 56 36 15 42 34

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