Math 2-9: Warm-up

Math 2-9: Scientific Notation Objective: How to express numbers in scientific notation.

Vocabulary scientific notation – a way of expressing numbers as the product of a number between 1 and 10 and a power of ten. 5,500 is 5.5 X 103 standard form – number expressed without exponents. 53,000

Powers of 10 (expressing numbers in standard form) multiplying by a positive power of 10 moves the decimal point to the RIGHT. multiplying by a negative power of 10 moves the decimal point to the LEFT.

Express Numbers in Standard Form

Powers of 10 (expressing numbers in scientific notation) place decimal point after the first nonzero digit. find the power of 10 if original is between 0 and 1 → power is negative greater than 1 → power is positive

Assignment 2-9 PS (a) 2-9 E (ec) Celebration of Knowledge: Chapter 2 9/30 **Family Activity DUE 9/30