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ExponentsRectangular Area, Part 1Square RootsLESSON 20 POWER UP D PAGE 134
Exponents Repeated multiplication
Base
Exponent
Exponents three squared or three to the second power
three cubed or three to the third power
three to the sixth power
Powers of 10 The number of zeros = the exponent
Multiplying When the base is the same, add exponents
Dividing When the base is the same, subtract exponents
Exponent Examples
62−33
Square Roots Counting numbers that are perfect squares
The same number times itself
DO NOT DIVIDE BY 2!!!
Area of a Rectangle4 cm
7 cm
Area: Perimeter Known If the perimeter of a square is 28 ft., what is its area?
Area: Find Side Length The area of a square is 25 in. What is length of each side?
Area: Squaring Fact Write a squaring fact and a square root fact illustrated by this 6 by 6 square.