evaluating expressions
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Curipod generated lesson: "evaluating expressions". #8-10
jcarroll
Updated 3 months ago
1. Word cloud
120 seconds
In two words, what is an expression?
2. Slide
60 seconds
Evaluating Expressions
Expressions are combinations of numbers and/or operations. To evaluate an expression, substitute values for any variables and calculate the result. Evaluating an expression usually requires using the order of operations.
3. Slide
60 seconds
evaluating expressions
Order of Operations: the order in which mathematic operations must be performed when evaluating an expression. It is usually represented with the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction)
Operands: the values or variables used in an expression. They are the objects that the operators act on.
Operators: the symbols that indicate an operation (e.g. +, -, *, /, etc.)
4. Slide
60 seconds
Did you know?
In mathematics, evaluating an expression means to find its value, i.e. to determine what number it represents. The process of evaluating an expression involves substituting the values of all the variables, constants and operators to find a single number or value. The process of evaluating an expression is sometimes referred to as simplif
5. Open question
180 seconds
Work together in pairs: What is the difference between the order of operations and the distributive property when evaluating expressions?
6. Personalised Feedback
360 seconds
What is the value of the expression 3x + 2y when x = 4 and y = 5?
7. Open question
180 seconds
Work together in pairs: What is the difference between evaluating an expression and simplifying an expression?
8. Poll
60 seconds
What is the value of 5 + 3 * 2?
- 16
- 13
- 11
- 10
9. Poll
60 seconds
Simplify the expression: 4 - (2 + 1)
- 0
- 1
- -1
- -3
10. Poll
60 seconds
Evaluate the expression: (6 - 2) * (4 + 3)
- 14
- 28
- 24
- 32
11. Poll
60 seconds
What is the result of 8 divided by 2 times (6 - 4)?
- 16
- 4
- 12
- 8
12. Poll
60 seconds
Simplify the expression: -5 + (-3) * (-2)
- -11
- 7
- +11
- +7
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