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.