"SWBAT solve a variety of numerical expressions that contain exponents."
Exponents are a way to express repeated multiplication. To evaluate an expression with an exponent, multiply the base number the number of times indicated by the exponent. For example, to evaluate 4^3, you would multiply 4 by itself three times, which equals 64.
Evaluating Numerical Expressions with Exponents
Exponents: A number that indicates how many times a number is multiplied by itself. For example, the expression 'x^2' means that x is multiplied by itself twice. Order of Operations: The order in which operations must be done when evaluating an expression. Exponents must be done before addition and subtraction. Evaluating Expressions: The process of calculating the value of an expression using the values of the variables and the order of operations.
Exponents are used to represent repeated multiplication. For example, 2^3 is equal to 2 x 2 x 2, or 8. The '^' symbol is used to represent an exponent. It is also sometimes referred to as the 'caret' symbol. The base number in an exponent can have a negative value. For example, (-2)^3 is equal to (-2) x (-2) x (-2), or -8.
Did you know?
Work together in pairs: True or False? 2^4 = 2 * 4 Explain your reasoning.
Work together in pairs: Fill in the blank: 3*3*3*3*3 = 3^__
Brain break: Draw a penguin like a rocket ship into outer space.
Match the expression with its equivalent value by dragging the value to the corresponding expression. Expressions: 5^3, 5^2, 3^2 Values: 25, 9, 125, 10
What is the value of x in the expression 2^x = 16?
Which of these expressions equals to 27?